Hi
@EKiemNot currently. There is a uservoice for this here
https://microsoftteams.uservoice.com/forums/555103-public/suggestions/39019426-allow-me-to-share-mul...Recommended to vote on it to push it up the agenda. As a Microsoft Certified Trainer I have been very vocal on this to the team in sessions and AMA's as I would to seamlessly switch between multiple applications without having to share the whole window. The ability to do this would allow the ability to record with multiple apps.
There is a workaround here - you can use an application such as OBS, pipe in the feed to Teams using the OBS virtual webcam and switch that way having people pin you to the screen. However, it can be fiddly and if you haven't used OBS before it can be complex at first
Another way is to record segments and then stitch them together using another app such as Camtasia
This is a feature I think is really important to have in Teams. I would like to switch seamlessly between all office apps, the browser, the whiteboard
Hope that answers your question
Best, Chris