You can attach loads to parts or locations for modeling purposes.
Attaching a load to a part binds the load and the part together in the model. If the part is moved, copied, deleted, etc., it affects the load. For example, you can attach a prestressing load to a part, so that the load moves with the part, and disappears if the part is deleted.
If you do not attach a load to a part, Tekla Structures fixes the load to the positions you pick when you create the load.
You cannot attach a load to a part after you have created the load.
You can detach a load from a part after you have created the load.