@Jokez-and-gamez it's called rigging. and it takes like 30 hours of work to rig a model to gta 5 workable state.
if you have a rare model and someone finds it interesting. they will help you out for free. who ever has time.
otherwise offer a donation. works every time
and oh yea. picture of the model or name of the model is also helpful for people to have idea of what you are talking about. like a car? what car? what type? what make? what size?
is it an aircraft a boat? a Ped character? a Map?
so these details will be really helpful in getting you information you need. ")