Is there a way to control just the transcript through purview compliance content retention feature? I would like to delete it after one day, finding a middle ground between copilot without transcript (that can only be invoked when in meeting, therefore if someone forgets they are done for) and copilot with transcript, that presents a bit of a compliance headache for us (since we do not allow meeting recordings)? Ideally, we could use the copilot with no transcript for longer, ie hide the transcript from user but allow copliot prompts after the meeting ends.