The bonemerged object cannot be selected and/or manipulated if the following steps occur

-Manipulate the model that bonemergable entities will attach to with RM (a singular rotational/translation change will do)
-Bonemerge the attachable entities with easy bonemerge
-The bonemerged entities don't appear in the menu below the bone tree unless the menu is forcibly refreshed by clicking off that model and onto it again

not sure if this can be fixed but i figured this should be pointed out anyways