Many entities, functions, etc. don't have a parent property shown all the time. But if I turn off Smart Edit I can add my own properties. So I added a parentname (the properties name) and set the value to the name of a moving object. I did this with a spawn point and a func_tracktrain brush and tested it, and it appeared to work! Can this be applied to anything? This would be neat now that I could try to have moving control points and spawn areas and other various objects that normally don't allow a parent property.