I've a spreadsheet with a lot of imports and formulas based on the imports. Sometimes it takes a long time to update -- there is now a progress bar in the upper right that pops ups the message "calculating formulas" when you hover over it. It there a programmatic way to detect when the sheet is done recalculating?
I'd like to popup a box (toast?) saying the sheet is busy and then disappear the box when the sheet is done recalculating.