Originally Posted by BetterRed
is what I was thinking of, good to know I've better things than Calibre of which to dream on
- suggest you do a search on approximate_formats to see what its all about - its a function rather than a column - I don't know for certain that functions can be used in searches but I'd be surprised if they can't.
Just create a custom column based on other columns and then use that fiction call in the definition of the column. When I'm back at my PC will post how to do it.