Props in drama...?

Yes, I can. A preset prop is one that is set on the stage before the play or scene has started. For instance, if the opening scene is set at a dinner table, the plates on the table would be "pre-set" (unless otherwise specified by the script). As for the other two, I'm not sure if theres a difference between them. A personal prop would be for somthing like: if your character has chapped lips, then his personal prop would be chap stick. I dont know how chap stick is not also a handheld prop. I guess its time to go back to theatre school. Good luck!