I mean for this that the tamable mobs of this mod could work with the "Following, wanderer and stay" command from the mod. I am not completely sure of how difficult it could be to add this, since as far as I know the modded mobs that are compatible with those commands are the ones which use the normal vanilla behaviour of a tamed mob that can follow the player. So it may require to change some things about how these mobs work when tammed, so take it easy, it is just a suggestion :)