Activating cell after button click (remove focus from the button)

I have a sheet with one button (a shape) which is associated with an Apps Script function.

When I click the button it inserts a row and activates a cell in that row.

Then if I try typing, nothing happens. I manually need to click on the new cell to be able to enter new text...

How can I change the code to be able to immediately start typing just after the click of the button (without additional click on the cell)?

function above_same_level() {  var ws = SpreadsheetApp.getActive();  var row = ws.getActiveRange().getRow();  ws.insertRowsBefore(row, 1);  ws.getRange('A'+ row).activate();};