Say for example I have an audience layout that consists of 300 chair symbols (laid out manually, not with the seating layout tool). Inside the 3D component of the chair symbol I have a 3D figure sitting on the chair, since I'll be doing renderings in this document.   It looks weird to have an army of 300 identical people in an audience, so I'd like to mix it up between three different chair symbols, each having the same chair but a different 3D figure. All I need to do is utilize the "Replace Symbol" function, but my current workflow involves first having to manually select 100 of the chairs via individual clicking. Then after Replacing Symbol I have to select another hundred. This is very slow.   Is there any way, perhaps with a script, to select a third or a half of the objects on the screen randomly? @Pat Stanford     Rough idea of result