diff --git a/ambient.d.ts b/ambient.d.ts
index c5c7f58..b0545e2 100644
--- a/ambient.d.ts
+++ b/ambient.d.ts
@@ -349,7 +349,7 @@ interface Utils {
 	complete_do_target(actions: {self: unknown, others: unknown}): Set<string>
 	complete_do(this: Optional<ICommand, 'Tag'>): undefined
 	replace_me(_match: string, _offset: number, whole: string): string
-	//pad_chat(chat: HTMLDivElement): undefined
+	scroll(): true
 }
 
 interface Complete {
@@ -445,15 +445,25 @@ interface InputHistory {
 	 */
 	ids: Set<number> | undefined
 
+	/**
+	 * Specific key handlers.
+	 */
+	key: Record<string, (textarea: HTMLTextAreaElement) => true>
+
+	/**
+	 * Set or unset the readonly mode on the input.
+	 */
+	icro(textarea: HTMLTextAreaElement, readonly: boolean): true
+
 	/**
 	 * Enter the history mode.
 	 */
 	enter(textarea: HTMLTextAreaElement, input: string, bottom: boolean, ids: Set<number>): true
 
 	/**
-	 * Exit the history mode and optionally restore original input.
+	 * Exit the history mode and proc the key event.
 	 */
-	exit(textarea: HTMLTextAreaElement, restore_input: boolean): true
+	exit(textarea: HTMLTextAreaElement, key: KeyboardEvent['key']): true
 }
 
 // FIXME spread around readonly where appropriate
diff --git a/mbchc.mjs b/mbchc.mjs
index a87ebe0..2ea0126 100644
--- a/mbchc.mjs
+++ b/mbchc.mjs
@@ -158,7 +158,7 @@ const/**@type {Utils}*/U = { remove_loader_hook: $, RGB: {Polly: '#81b1e7', Mute
 		return $Ss
 	})},
 	replace_me: (_, __, whole) => cur(whole.slice(1), t => `${U.ACT}<${U.cid(W.Player)}:>SourceCharacter${t.startsWith('\'') || t.startsWith(' ') ? $S : ' '}`),
-	//pad_chat: c => loo(100, _ => c.scrollHeight <= c.clientHeight, _ => yes(void c.prepend(U.mkdiv('\u061C')))) && void W.ElementScrollToEnd('TextAreaChatLog')
+	scroll: () => yes(void W.ElementScrollToEnd('TextAreaChatLog')),
 }
 
 const/**@type {SUBCOMMANDS}*/SUBCOMMANDS_MBCHC = {
@@ -178,7 +178,7 @@ const/**@type {Complete}*/C = { S_OPTS: {behavior: 'instant'},
 	hint: cs => m_t(cs) || yes(_ => {
 		yes(C.e.style.display = 'block') && C.div?.replaceChildren(...[...cs].sort().reverse().map(U.mkdiv))
 		W.ElementSetDataAttribute(C.e.id, 'colortheme', W.Player.ChatSettings?.ColorTheme ?? 'Light')
-		cur(W.ElementIsScrolledToEnd('TextAreaChatLog'), r => yes(void W.ChatRoomResize(false)) && r && void W.ElementScrollToEnd('TextAreaChatLog'))
+		cur(W.ElementIsScrolledToEnd('TextAreaChatLog'), r => yes(void W.ChatRoomResize(false)) && r && U.scroll())
 		C.div?.lastElementChild?.scrollIntoView(C.S_OPTS)
 	}),
 	get hidden() {return C.e.parentElement === null || C.e.style.display === 'none'},
@@ -203,8 +203,13 @@ const/**@type {Complete}*/C = { S_OPTS: {behavior: 'instant'},
 }
 
 const/**@type {InputHistory}*/H = { input: undefined, ids: undefined, bottom: undefined, // FIXME ids don't need to be a set, but I'm too tired right now
-	enter: (ic, i, b, is) => yes(H.input = i, H.bottom = b, H.ids = is, ic.readOnly = true, val(ic.parentElement?.parentElement?.dataset, d => d['mbchcMode'] = 'h'), b && void W.ElementScrollToEnd('TextAreaChatLog')),
-	exit: (ic, r) => yes(ic.readOnly = false, val(ic.parentElement?.parentElement?.dataset, d => del(d, 'mbchcMode')), r && val(H.input, i => ic.value = i), val(H.bottom, b => b && void W.ElementScrollToEnd('TextAreaChatLog')), W.ChatRoomLastMessageIndex = W.ChatRoomLastMessage.length)
+	key: {
+		Escape: ic => yes(val(H.input, i => ic.value = i)),
+		ArrowLeft: ic => yes(void ic.setSelectionRange(0, 0)),
+	},
+	icro: (ic, ro) => yes(ic.readOnly = ro, val(ic.parentElement?.parentElement?.dataset, d => ro ? d['mbchcMode'] = 'h' : del(d, 'mbchcMode'))),
+	enter: (ic, i, b, is) => yes(H.input = i, H.bottom = b, H.ids = is, H.icro(ic, true), b && U.scroll()),
+	exit: (ic, k) => yes(H.icro(ic, false), H.key[k]?.(ic), val(H.bottom, b => b && U.scroll()), W.ChatRoomLastMessageIndex = W.ChatRoomLastMessage.length)
 }
 
 ass('MBCHC found, aborting loading', W.MBCHC === $)
@@ -475,7 +480,7 @@ const/**@type {SDK.Hook}*/after = (name, f) => mod.hookFunction(name, 0, (na, n)
 	//	W.ElementSetDataAttribute(this.COMP_HINT.id, 'colortheme', (W.Player.ChatSettings?.ColorTheme || 'Light'))
 	//	const rescroll = W.ElementIsScrolledToEnd('TextAreaChatLog')
 	//	W.ChatRoomResize(false)
-	//	if (rescroll) W.ElementScrollToEnd('TextAreaChatLog')
+	//	if (rescroll) U.scroll()
 	//	this.COMP_HINT.firstChild?.lastChild?.scrollIntoView({behaviour: 'instant'})
 	//},
 
@@ -585,7 +590,7 @@ const/**@type {SDK.Hook}*/after = (name, f) => mod.hookFunction(name, 0, (na, n)
 			#${C.e.id}[data-colortheme^="dark"] > div { background-color: ${U.RGB.Mute}; color: white; }
 			#${C.e.id} > div div { margin: 0.25ex 0; }
 			#chat-room-div #TextAreaChatLog::before { content: ''; display: block; height: 100%; }
-			#chat-room-div[data-mbchc-mode="h"] #TextAreaChatLog::after { content: '𝗵𝗶𝘀𝘁𝗼𝗿𝘆 ⟨𝘗𝘨𝘜𝘱/𝘋𝘯⟩ 𝗌𝖼𝗋𝗈𝗅𝗅 ⇅ ⟨𝘌𝘯𝘵𝘦𝘳⟩ 𝗌𝖾𝗇𝖽 ↵ ⟨𝘛𝘢𝘣⟩ 𝖾𝖽𝗂𝗍 ⌨ ⟨𝘌𝘴𝘤⟩ 𝖺𝖻𝗈𝗋𝗍 ⟲'; display: block; position: sticky; bottom: 0; background: black; color: orange; padding: 0 0.2ex; animation: 0.2s cubic-bezier(0.19, 1, 0.22, 1) mbchc_hist_hint_show; }
+			#chat-room-div[data-mbchc-mode="h"] #TextAreaChatLog::after { content: '𝗵𝗶𝘀𝘁𝗼𝗿𝘆 ⟨𝘗𝘨𝘜𝘱/𝘋𝘯/↕⟩ 𝗌𝖼𝗋𝗈𝗅𝗅 ⇅ ⟨𝘌𝘯𝘵𝘦𝘳⟩ 𝗌𝖾𝗇𝖽 ↵ ⟨𝘛𝘢𝘣/↔⟩ 𝖾𝖽𝗂𝗍 ⌨ ⟨𝘌𝘴𝘤⟩ 𝖺𝖻𝗈𝗋𝗍 ⟲'; display: block; position: sticky; bottom: 0; background: black; color: orange; padding: 0 0.2ex; animation: 0.2s cubic-bezier(0.19, 1, 0.22, 1) mbchc_hist_hint_show; }
 			#InputChat:read-only { background: black; color: orange; }
 			@keyframes mbchc_hist_hint_show { from {transform: translateX(-100%);} to {transform: translateX(0);} }
 		`)
@@ -630,11 +635,11 @@ const/**@type {SDK.Hook}*/after = (name, f) => mod.hookFunction(name, 0, (na, n)
 			C.hide()
 			const ic = this // eslint-disable-line unicorn/no-this-assignment,@typescript-eslint/no-this-alias
 			if (ic.readOnly) switch (e.key) {
-				case 'Tab': case 'Escape':
+				case 'ArrowUp': case 'ArrowDown': W.ChatRoomScrollHistory(e.key === 'ArrowUp'); break
+				case 'Escape': case 'Tab': case 'ArrowRight': case 'ArrowLeft':
 					e.stopImmediatePropagation()
 					e.preventDefault() // falls through
-				case 'Enter':
-					H.exit(ic, e.key === 'Escape') // no default
+				case 'Enter': H.exit(ic, e.key) // no default
 			}
 		}
 		after('ChatRoomCreateElement', () => { // This thing runs on every frame actually.
diff --git a/server.js b/server.js
index 803dffb..6df9882 100644
--- a/server.js
+++ b/server.js
@@ -24,7 +24,8 @@ const h_all = {
 }
 
 const server = createServer((rq, rx) => {
-	rq.method !== undefined && resp[rq.method] !== undefined && (new URL(`http://${config.host}:${config.port}${rq.url}`)).pathname === '/' ? resp[rq.method](rx) : rx.writeHead(400)
+	const handler = resp[rq.method ?? '']
+	handler !== undefined && (new URL(`http://${config.host}:${config.port}${rq.url}`)).pathname === '/' ? handler(rx) : rx.writeHead(400)
 	rx.end(() => void console.log('%s %d %s %s', (new Date()).toISOString(), rx.statusCode, rq.method, rq.url))
 })
 server.listen(config.port, config.host, () => void console.log(`Server started at http://${config.host}:${config.port} for ${config.filename}`))