I'm trying to simulate fight on horseback. My horses take 2 cells on a grid. I want to be able to target the size cells of opponents, but I don't want to be able to attack from the back cell of the horse, only the front cell. In clear, in place of the "Include Size cells" checkbox in Battle Range Templates, I need to have two checks, Include Size cells for user and Include Size cells for target.
Would that modification be possible?