diff --git a/public/css/styles.css b/public/css/styles.css
index ff38293..fa550a0 100644
--- a/public/css/styles.css
+++ b/public/css/styles.css
@@ -346,3 +346,22 @@ code.inline { background: var(--bg-3); border: 1px solid var(--line); border-rad
 .ctxmenu .sub { color: var(--txt-faint); padding: 4px 12px; font-size: 10.5px; text-transform: uppercase; letter-spacing: .5px; }
 
 .empty { display: grid; place-items: center; height: 100%; color: var(--txt-faint); }
+
+/* toasts */
+.toast-host { position: fixed; right: 16px; bottom: 36px; z-index: 300; display: flex; flex-direction: column; gap: 8px; align-items: flex-end; }
+.toast {
+  background: var(--bg-2); border: 1px solid var(--line); border-left: 3px solid var(--accent);
+  border-radius: 6px; padding: 9px 14px; color: var(--txt); box-shadow: 0 8px 24px rgba(0,0,0,.4);
+  max-width: 360px; animation: toast-in .18s ease-out;
+}
+.toast.err { border-left-color: var(--err); }
+.toast.ok { border-left-color: var(--ok); }
+.toast.out { opacity: 0; transform: translateY(6px); transition: opacity .25s, transform .25s; }
+@keyframes toast-in { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
+
+/* connection banner */
+.conn-banner {
+  position: fixed; top: 52px; left: 50%; transform: translateX(-50%); z-index: 300;
+  background: var(--warn); color: #1a1300; font-weight: 600; font-size: 12px;
+  padding: 6px 16px; border-radius: 14px; box-shadow: 0 6px 20px rgba(0,0,0,.4);
+}
diff --git a/public/js/app.js b/public/js/app.js
index 087d982..002c02c 100644
--- a/public/js/app.js
+++ b/public/js/app.js
@@ -4,7 +4,7 @@
 
 import { api } from './api.js';
 import * as f from './format.js';
-import { renderDetailShell, closeDetail, detailTab } from './detail.js';
+import { renderDetailShell, closeDetail } from './detail.js';
 
 /* ===================== state ===================== */
 const state = {
@@ -56,19 +56,29 @@ const STATUS_FILTERS = [
 
 /* ===================== bootstrap ===================== */
 async function boot() {
-  state.meta = await api.meta();
+  bindGlobal();
+  await loadMeta();          // retries until the server answers
   syncAltToggle();
   renderSidebar();
   renderView();
   api.stream(onSnapshot, onStatus);
-  bindGlobal();
+}
+
+async function loadMeta() {
+  for (;;) {
+    try { state.meta = await api.meta(); return; }
+    catch { onStatus('reconnecting'); await new Promise((r) => setTimeout(r, 2000)); }
+  }
 }
 
 function onSnapshot(snap) {
   state.snapshot = snap;
+  // drop selection / detail for torrents that no longer exist
+  const live = new Set(snap.torrents.map((t) => t.hash));
+  for (const h of [...state.selected]) if (!live.has(h)) state.selected.delete(h);
+  if (state.detailHash && !live.has(state.detailHash)) closeDetailPanel();
   updateRates();
   renderStatusbar();
-  // keep sidebar counts fresh + grid live
   renderSidebar();
   if (state.view === 'torrents') renderGrid();
 }
@@ -76,6 +86,7 @@ function onSnapshot(snap) {
 function onStatus(s) {
   const led = document.querySelector('.statusbar .led');
   if (led) led.style.background = s === 'connected' ? 'var(--ok)' : 'var(--warn)';
+  setBanner(s === 'connected' ? '' : 'Reconnecting to server…');
 }
 
 /* ===================== derived ===================== */
@@ -95,7 +106,7 @@ function visibleTorrents() {
 function matchFilter(t, type, value) {
   if (type === 'category') return (t.category || '') === value;
   if (type === 'tag') return t.tags.includes(value);
-  if (type === 'tracker') return true; // tracker host not in compact snapshot; show all (stub)
+  if (type === 'tracker') return (t.trackerHosts || []).includes(value);
   // status
   const s = t.state;
   switch (value) {
@@ -212,11 +223,32 @@ function renderTorrentsView(host) {
   if (state.detailHash) renderDetailShell(state.detailHash, document.getElementById('detailHost'));
 }
 
+let gridSig = '';
+
 function renderGrid() {
   const wrap = document.getElementById('gridWrap');
   if (!wrap) return;
   const list = visibleTorrents();
   const cols = state.columns;
+  // signature of structure (columns + ordered hashes). When unchanged, update
+  // cell contents in place instead of rebuilding — preserves text selection,
+  // scroll, focus, and avoids re-binding listeners every second.
+  const sig = cols.join(',') + '|' + list.map((t) => t.hash).join(',');
+
+  if (sig === gridSig) {
+    const tbody = wrap.querySelector('tbody');
+    if (tbody && tbody.children.length === list.length) {
+      for (let r = 0; r < list.length; r++) {
+        const t = list[r];
+        const tr = tbody.children[r];
+        tr.classList.toggle('sel', state.selected.has(t.hash));
+        const inner = cols.map((k) => cell(t, k)).join('');
+        if (tr.__inner !== inner) { tr.innerHTML = inner; tr.__inner = inner; }
+      }
+      return;
+    }
+  }
+  gridSig = sig;
 
   const head = cols.map((k) => {
     const c = COLUMNS[k];
@@ -224,9 +256,7 @@ function renderGrid() {
     return `<th data-col="${k}" class="${c.num ? 'num' : ''}" ${c.w ? `style="width:${c.w}"` : ''}>${c.label}${arrow}</th>`;
   }).join('');
 
-  const rows = list.map((t) => `<tr data-hash="${t.hash}" class="${state.selected.has(t.hash) ? 'sel' : ''}">
-    ${cols.map((k) => cell(t, k)).join('')}
-  </tr>`).join('');
+  const rows = list.map((t) => `<tr data-hash="${t.hash}" class="${state.selected.has(t.hash) ? 'sel' : ''}">${cols.map((k) => cell(t, k)).join('')}</tr>`).join('');
 
   wrap.innerHTML = `<table class="grid"><thead><tr>${head}</tr></thead><tbody>${rows || emptyRow(cols.length)}</tbody></table>`;
 
@@ -237,8 +267,9 @@ function renderGrid() {
       renderGrid();
     }));
 
-  wrap.querySelectorAll('tr[data-hash]').forEach((tr) => {
-    tr.addEventListener('click', (e) => onRowClick(e, tr.dataset.hash, list));
+  wrap.querySelectorAll('tr[data-hash]').forEach((tr, idx) => {
+    tr.__inner = cols.map((k) => cell(list[idx], k)).join(''); // cache computed (not DOM-normalized) html
+    tr.addEventListener('click', (e) => onRowClick(e, tr.dataset.hash, visibleTorrents()));
     tr.addEventListener('dblclick', () => openDetail(tr.dataset.hash));
     tr.addEventListener('contextmenu', (e) => onRowContext(e, tr.dataset.hash));
   });
@@ -324,13 +355,38 @@ function closeDetailPanel() {
   }
 }
 
+/* ===================== feedback (toasts + connection banner) ===================== */
+function toast(msg, kind = '') {
+  let host = document.getElementById('toastHost');
+  if (!host) { host = document.createElement('div'); host.id = 'toastHost'; host.className = 'toast-host'; document.body.appendChild(host); }
+  const el = document.createElement('div');
+  el.className = `toast ${kind}`;
+  el.textContent = msg;
+  host.appendChild(el);
+  setTimeout(() => { el.classList.add('out'); setTimeout(() => el.remove(), 250); }, 3200);
+}
+
+function setBanner(msg) {
+  let b = document.getElementById('connBanner');
+  if (!msg) { b?.remove(); return; }
+  if (!b) { b = document.createElement('div'); b.id = 'connBanner'; b.className = 'conn-banner'; document.body.appendChild(b); }
+  b.textContent = msg;
+}
+
+// Run an async handler, surfacing failures as a toast instead of an unhandled rejection.
+function guard(fn, msg) {
+  return Promise.resolve().then(fn).catch((e) => { console.error(e); toast(msg || 'Something went wrong', 'err'); });
+}
+
 /* ===================== actions ===================== */
 async function doAction(action, hashes) {
   hashes = hashes || [...state.selected];
   if (!hashes.length) return;
   if (action === 'delete') return confirmDelete(hashes);
-  if (action === 'altspeed') { await api.toggleAltSpeed(); syncAltToggle(); return; }
-  await api.action(action, hashes);
+  try {
+    if (action === 'altspeed') { await api.toggleAltSpeed(); syncAltToggle(); return; }
+    await api.action(action, hashes);
+  } catch (e) { console.error(e); toast(`Action failed: ${action}`, 'err'); }
 }
 
 function syncAltToggle() {
@@ -343,13 +399,13 @@ async function confirmDelete(hashes) {
     <p class="dim">Choose whether to also delete the downloaded data from disk.</p>
     <div class="checks"><label><input type="checkbox" id="delFiles"> Also delete files on disk</label></div>`,
     [{ label: 'Cancel', act: closeModal }, {
-      label: 'Remove', cls: 'danger', primary: true, act: async () => {
+      label: 'Remove', cls: 'danger', primary: true, act: () => guard(async () => {
         const delFiles = document.getElementById('delFiles').checked;
         await api.remove(hashes, delFiles);
         hashes.forEach((h) => state.selected.delete(h));
         if (hashes.includes(state.detailHash)) closeDetailPanel();
         closeModal();
-      },
+      }, 'Failed to remove torrent(s)'),
     }]);
 }
 
@@ -371,7 +427,7 @@ function openAddModal() {
       <label><input type="checkbox" id="addSkip"> Skip hash check</label>
     </div>`,
     [{ label: 'Cancel', act: closeModal }, {
-      label: 'Add', primary: true, act: async () => {
+      label: 'Add', primary: true, act: () => guard(async () => {
         const magnet = document.getElementById('addMagnet').value.trim();
         const common = {
           category: document.getElementById('addCat').value,
@@ -383,11 +439,13 @@ function openAddModal() {
         const files = [...document.getElementById('addFile').files];
         if (files.length) {
           for (const file of files) await api.add({ ...common, ...(await readTorrentFile(file)) });
+          toast(`Added ${files.length} torrent(s)`, 'ok');
         } else if (magnet) {
           await api.add({ ...common, magnet });
+          toast('Torrent added', 'ok');
         }
         closeModal();
-      },
+      }, 'Failed to add torrent'),
     }]);
   // live readout of the chosen file(s)
   document.getElementById('addFile').addEventListener('change', async (e) => {
@@ -400,6 +458,59 @@ function openAddModal() {
   });
 }
 
+/* ---------- per-torrent location / rate / share limits ---------- */
+function promptLocation() {
+  const hashes = [...state.selected];
+  if (!hashes.length) return;
+  const cur = state.snapshot.torrents.find((t) => t.hash === hashes[0]);
+  openModal('Set location', `
+    <div class="field"><label>Save path</label><input type="text" id="locPath" value="${f.esc(cur?.savePath || '')}" /></div>
+    <p class="dim" style="font-size:12px">Applies to ${hashes.length} torrent(s).</p>`,
+    [{ label: 'Cancel', act: closeModal }, {
+      label: 'Apply', primary: true, act: () => guard(async () => {
+        const savePath = document.getElementById('locPath').value.trim();
+        if (savePath) await api.action('setSavePath', hashes, { savePath });
+        closeModal();
+      }, 'Failed to set location'),
+    }]);
+  setTimeout(() => document.getElementById('locPath')?.focus(), 0);
+}
+
+function promptRateLimit(dir) {
+  const hashes = [...state.selected];
+  if (!hashes.length) return;
+  const action = dir === 'down' ? 'setDownLimit' : 'setUpLimit';
+  openModal(`Limit ${dir === 'down' ? 'download' : 'upload'} rate · ${hashes.length} torrent(s)`, `
+    <div class="field"><label>Rate (KiB/s — 0 = unlimited)</label>
+      <input type="text" id="rateVal" placeholder="0" inputmode="numeric" /></div>`,
+    [{ label: 'Cancel', act: closeModal }, {
+      label: 'Apply', primary: true, act: () => guard(async () => {
+        const kib = Math.max(0, parseInt(document.getElementById('rateVal').value, 10) || 0);
+        await api.action(action, hashes, { limit: kib * 1024 });
+        closeModal();
+      }, 'Failed to set rate limit'),
+    }]);
+  setTimeout(() => document.getElementById('rateVal')?.focus(), 0);
+}
+
+function promptShareLimit() {
+  const hashes = [...state.selected];
+  if (!hashes.length) return;
+  openModal(`Set share limit · ${hashes.length} torrent(s)`, `
+    <div class="field"><label>Seeding ratio limit</label>
+      <input type="text" id="ratioVal" placeholder="-1" inputmode="decimal" /></div>
+    <p class="dim" style="font-size:12px">−1 = use global · 0 = unlimited</p>`,
+    [{ label: 'Cancel', act: closeModal }, {
+      label: 'Apply', primary: true, act: () => guard(async () => {
+        const v = document.getElementById('ratioVal').value.trim();
+        const limit = v === '' ? -1 : parseFloat(v);
+        await api.action('setRatioLimit', hashes, { limit: Number.isNaN(limit) ? -1 : limit });
+        closeModal();
+      }, 'Failed to set share limit'),
+    }]);
+  setTimeout(() => document.getElementById('ratioVal')?.focus(), 0);
+}
+
 // Minimal bencode decoder (operates on a Uint8Array) — enough to read a .torrent's
 // info dict client-side so an uploaded file shows realistic name/size/pieces.
 function bdecode(buf) {
@@ -460,6 +571,13 @@ function onRowContext(e, hash) {
     { label: 'Toggle super seeding', act: () => doAction('toggleSuperSeeding') },
     { label: 'Set category…', act: () => promptCategory() },
     { label: 'Edit tags…', act: () => promptTags() },
+    { sep: true },
+    { sub: 'Limits & location' },
+    { label: 'Set location…', act: () => promptLocation() },
+    { label: 'Limit download rate…', act: () => promptRateLimit('down') },
+    { label: 'Limit upload rate…', act: () => promptRateLimit('up') },
+    { label: 'Set share limit…', act: () => promptShareLimit() },
+    { sep: true },
     { label: 'Properties', sc: '⏎', act: () => openDetail(hash) },
     { sep: true },
     { label: `Remove ${n > 1 ? `(${n})` : ''}`, danger: true, sc: 'Del', act: () => doAction('delete') },
@@ -806,7 +924,7 @@ function bindGlobal() {
     if (typing) return;
     if (e.key === '/') { e.preventDefault(); qf.focus(); }
     else if (e.key.toLowerCase() === 'n') openAddModal();
-    else if (e.key === 'Delete' || e.key === 'Backspace') doAction('delete');
+    else if (e.key === 'Delete') doAction('delete');
     else if (e.key === ' ') {
       e.preventDefault();
       // toggle pause/resume on selection
diff --git a/public/js/detail.js b/public/js/detail.js
index a0b67e4..0334947 100644
--- a/public/js/detail.js
+++ b/public/js/detail.js
@@ -9,8 +9,6 @@ let currentHash = null;
 let refreshTimer = null;
 let detailHeight = 300; // px, persisted across re-renders so resizing sticks
 
-export function detailTab() { return activeTab; }
-
 export function renderDetailShell(hash, host) {
   currentHash = hash;
   // Drive the container's grid track (persists across row clicks / re-renders),
@@ -58,7 +56,7 @@ async function loadTab() {
       if (activeTab === 'general') body.innerHTML = renderGeneral(await api.torrent(currentHash));
       else if (activeTab === 'trackers') body.innerHTML = renderTrackers(await api.trackers(currentHash));
       else if (activeTab === 'peers') body.innerHTML = renderPeers(await api.peers(currentHash));
-      else if (activeTab === 'content') body.innerHTML = renderFiles(await api.files(currentHash));
+      else if (activeTab === 'content') { body.innerHTML = renderFiles(await api.files(currentHash)); bindFilePriorities(body); }
       else if (activeTab === 'pieces') body.innerHTML = renderPieces(await api.pieces(currentHash));
     } catch { /* ignore transient */ }
   };
@@ -176,6 +174,13 @@ function renderFiles(files) {
   </tbody></table>`;
 }
 
+function bindFilePriorities(body) {
+  const hash = currentHash;
+  body.querySelectorAll('.prio-sel').forEach((sel) =>
+    sel.addEventListener('change', () =>
+      api.action('setFilePriority', [hash], { index: +sel.dataset.file, priority: +sel.value })));
+}
+
 /* ---------- Pieces ---------- */
 function renderPieces(data) {
   const { pieces, pieceSize, pieceCount } = data;
diff --git a/server/data.js b/server/data.js
index 2833807..80bb25f 100644
--- a/server/data.js
+++ b/server/data.js
@@ -48,7 +48,7 @@ const TAGS = ['archive', 'public', 'private', 'seed-forever', 'hit-and-run', 've
 const TRACKER_HOSTS = [
   'tracker.opentrackr.org:1337', 'open.demonii.com:1337', 'tracker.torrent.eu.org:451',
   'exodus.desync.com:6969', 'tracker.openbittorrent.com:6969', 'private.tracker.lan:2710',
-  'tracker.dler.org:6969', 'open.stealth.si:80', '** [DHT] **', '** [PeX] **', '** [LSD] **',
+  'tracker.dler.org:6969', 'open.stealth.si:80',
 ];
 
 const NAME_TEMPLATES = [
diff --git a/server/index.js b/server/index.js
index 683b583..9c5b753 100644
--- a/server/index.js
+++ b/server/index.js
@@ -68,10 +68,18 @@ function snapshot() {
       forceStart: t.forceStart,
       timeActive: t.timeActive,
       private: t.private,
+      trackerHosts: trackerHostsOf(t),
     })),
   };
 }
 
+function hostOf(url) {
+  try { return new URL(url).host; } catch { return url; }
+}
+function trackerHostsOf(t) {
+  return t.trackers.filter((tr) => tr.tier >= 0).map((tr) => hostOf(tr.url));
+}
+
 function json(res, data, code = 200) {
   const body = JSON.stringify(data);
   res.writeHead(code, { 'Content-Type': 'application/json; charset=utf-8' });
@@ -107,6 +115,7 @@ const ACTIONS = {
   setDownLimit: (t, p) => { t.downLimit = p.limit ?? 0; },
   setUpLimit: (t, p) => { t.upLimit = p.limit ?? 0; },
   setRatioLimit: (t, p) => { t.ratioLimit = p.limit ?? -1; },
+  setFilePriority: (t, p) => { if (t.files[p.index]) t.files[p.index].priority = p.priority; },
   topPriority: (t) => { t.priority = 1; },
   bottomPriority: (t) => { t.priority = 99; },
   increasePriority: (t) => { t.priority = Math.max(1, (t.priority || 1) - 1); },