Change summary "style and content" of AI Companion

Hello,

Can I give AI Companion instructions on how it should give me a summary (what important, relevant information is in which structure it should summarize, for example)?

And can I get more information from the transcript afterwards, when a meeting has already ended?

Or receive a written, complete transcript afterwards?

Can I also activate the chat with AI companion so that it is only visible to me as the host and not to everyone?

Thank you and best regards