Hey @Nuttapong_Yuyang, thanks for the suggestions!
On deleting chats: the Agents Window only offers Archive right now. That’s intentional, so history isn’t lost by accident. If you switch to the Editor window, you can delete individual chats from the chat history there.
We already have a thread collecting votes for Delete in the Agents Window, so I’d suggest adding your voice there! Restore Delete option alongside Archive in chat history
On two-way voice chat: this is something the team is actively looking at, so keep an eye on upcoming releases! For now, voice input is dictation, and replies come back as text.