I have a homemade implementation in Google Sheets that sort of works. I use it sometimes more, sometimes less. Template at https://docs.google.com/spreadsheets/

I have a homemade implementation in Google Sheets that sort of works. I use it sometimes more, sometimes less. Template at https://docs.google.com/spreadsheets/d/1YUG6--8BOk_TdxDTSY9AQEFGue_0msiJ3p_JDA8UB_4/edit?usp=sharing https://docs.google.com/spreadsheets/d/1YUG6--8BOk_TdxDTSY9A... - feel free to try.