Wow, this is really cool - I really like this idea. I didn't even know this is possible.

Is there a way for me to change the drop down to be something like "Week of Mar 5" instead of "201810"? If that is a manual process, please let me know and I'll take care of it.

In the meantime, I think what I will do is try to combine the various spreadsheets into 2 (combining Streams, Employees, Weeks, and Calendary) to conserve space.