HL2 Source Hammer Prop_Physics Question Thread

Trying to make a group of prop_physics disappear, and then have another group appear after a button press. I tried making them prop_dynamic but as the description says: they are NOT supposed to be prop_dynamic unless they animate. Is there any way to get a prop_physics (or something else) to disappear/reappear? Oh- and I mean a prop, not a brush that i made into a physics object, and actual model.

Thanks in advance for your help.

[prop_physics]- physical

[prop_physics_override] -physical forcibly, works the same way with dynamics

[prop_dynamic] -prop speaker works with partners

[prop_dynamic_override] - forced dynamics, sometimes works with static and physical.

[prop_static] -fixed prop, does not work with physical props, speaker props