[SCRIPT] Need some help with flying body.

[Your Computer]

The thing is, I have AddPropForce, but the doors of the closet wont open. Do I have to do anything with the closet? Or just add more to the AddPropForce?

Try AddBodyForce, then. Open the entity in the model editor and find the name of the bodies that make up the doors. Then, for AddBodyForce's object name, separate the entity name and the body name with an underscore (e.g. EntityName_BodyName). Do so for each door of the closet.