I've looked all over this board and found a bunch of solutions, but none that do exactly what I'm looking for and none that actually worked.
I'm using this as a Project Management Task Tracking tool.

I need to button to toggle hide/view done tasks. Column B is where I check a task as done. I use the Marlet font so when I type the letter 'a' in cell, it looks like a check mark.
Resolving that issue alone would be great!

Ideally, I would also like to set a range of rows for this. I have multiple tables on that page, one table for each project, and I add rows often, and since row on top of each table is the name of project, I can't just select the entire B column.
If this can't be done I'll split them across sheets, but it would be awesome if it could.

Thanks.