Help with making gravity different in certain areas?

So if I start a new place, and insert a part, then I scale up the part and turn off its can collide, how do I make it so that gravity inside the part is heavier then when you are out of the part?

Could you elaborate a bit more?

Force objects such as body velocities can be used to change how much gravity is on a part.

There is also a gravity property located in the properties of workspace that you can change, or you can change it locally when a player touches something, but I'd need to know more of what you mean.