I think I have it figured out. It's still not super fast, but it's under a second and doesn't write to the sheet twice. Once I figured out that I could insert checkboxes after the fact, it really helped. Here is the new code:
I think I have it figured out. It's still not super fast, but it's under a second and doesn't write to the sheet twice. Once I figured out that I could insert checkboxes after the fact, it really helped. Here is the new code: