Is there a program busy or working screen indicator for calc 5.1

Pivot table started In a large spreadsheet I can’t tell if Calc is running or has stopped/hung. I have to wait sometimes 20-30 minutes to be sure that system isn’t functioning. It would be good to have some visual indication displaying that calc is working/processing ok, or if hung, that the program has stopped. Maybe there are these calc program status indicator displays - if so, how do I get them?