Hi!
Is it possible to have a custom column that
automatically detects the date another custom column was last modified?
I'd like to have a yyyy/mm/dd "Date Read" column coming from the date I've modified my Yes/No #read custom column. Though I imagine it's not easy also for the fact this is a Y/N/empty column, so with 3 values and I'd only need an entry for the Y one..
I don't even know if it's possible, if Calibre remembers when a particular column was modified or not... I'm definitely very far from being an expert, so I'm asking

I hope the answer isn't under my nose
In any case, Thank you