Is there a function in Equilab that allows to substract one range from another?

For example if I wanna map out my checking range on a flop where I'm the PFR, I would normally have to calculate the betting range and then one by one substract those combos from the total PFR range.. which takes a lot of time to do. It would make it much easier to input both the PFR and the betting range and have Equilab substracting them.

Anybody? :)