Hello! I'm here to ask about grids again.

I've got the grid set up as one of those check mark booleans cuz I like the look of it and you can just double click it, but I couldn't figure out how to make some code that can set all of the checks to false / 0 for me. Trynna make a little button that can just wipe the slate clean for a new day.

this is my best attempt at getting a checkmark to change, but it doesn't do the trick as is.