Would be a great UI feature to have an (optional) contextual button overlay on cards which can used to open a hover pop-up which in turn can be populated with text, images, links etc. Similar to the PowerBI :( Tooltips feature
This would give us the ability to provide detailed info guides on complex cards without requiring additional cards on the page containing this information, saving valuable page real-estate, guiding and informing the end user and avoiding navigation away from the page or card that they are viewing.
