I work on this too ATM. I use camerapick after mousehit(2) under the crosshair. I have animated Meshes as Buttons. The child that has to be clicked is named "button" in the Modelling App, so I can check if the player clicked the button part of the aniimated Mesh. I also have an Array that stores all Children-Handles of Meshes loaded using LoadAnimMesh as well as their top Parent-Handle. If I click such an "orphan" the Array will tell me what Parent-Entity I have to Animate. Of course this can also be solved using Types.