hey, I'm making a list on excel, it's actually 5 different lists in sequence, and each one of them will have a master checkbox wich selects all the checkboxes that are slaved to each item on it's list.
I'm listing songs, and each list is a different album, so I want to be able to select each song separately (already done) select every song of an album at once, and also select all songs from the 5 albums, so I'd also need to have a master checkbox that selects "sub-master" checkboxes.
I saw this tutorial Link but it's only helpful for selecting everything, so I also saw this post: Link but there must be a syntax error or something, and maybe I also don't quite understand it very well to apply it to my needs, because it returns an error message.
any help is appreciated!
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