Hope it still helps someone out there:

https://docs.google.com/spreadsheets...it?usp=sharing

enjoy =)


Need to make a copy before using it, of course; only edit the Yes/No and the 'x' (no drop) or 'o' (drop) in the weekly table. The rest updates automatically.

EDIT: Char 7 has '-' in the weekly table since is on holidays (in my static); change that to 'o' or 'x'.