I have a spreadsheet with approximately 50 columns that I want subtotals for. Each time I re-open the spreadsheet and want to use the Subtotal feature, I need to select the check boxes, one by one, of all the columns I want subtotaled. Is there a way I can either:
1. easily check all the check boxes (I tried using the shift and control keys, etc. but this did not work)?; or
2. have the selected check boxes stay checked after closing and re-opening?; or
3. some other solution?
Thank you in advance!!!
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