Chrome cast text and question picture in picture

Hi guys, this might be a crazy idea. but i am wondering if there is a possibilty to to cast a question on tv chrome cast and wait for a respond to continue a flow. This should be in a form of a picture in picture notification without pausing currently playing movie.

I would like to trigger information as the homey does not have a display i would like a central view of information ever now and again on some triggers.