Display a 'please wait' message while Power BI is recalculating

Hello - I am wondering if it is possible to have a message pop up while the tool is recalculating, and then disappear automatically once the calculation is done? Currently, I have a complicated calculation that can take 20-30 seconds to recalculate. I would like to have a large text box appear on the screen while this is calaculating to inform the user to please wait patiently. I'm thinking this is not yet a feature, but it is a common feature for any good user interface design.   <<PS, I am sure I could speed up the 20-30 second calc as well - I'm working on that too!>>  Also - I know there is a tiny wheel in the upper left corner, but this is not always noticeable, and I would like to display a friendly please wait message.