How to get GMod entities into Hammer Editor?

I’m wondering how to get entities from GMod such as GMod_Tool (Tool-Gun) GMod_Lamp (Lamp Tool) and GMod_Camera (Camera)

place an entity, rename it, press enter.

itll show as obsolete, but itll be there when youre playing the map.

Will I be able to change the entity properties?
EDIT
Nevermind it doesn’t use SmartEdit.

Assuming you can find out the parameters of it, you can create your own custom garrysmod.fdg file. This will allow you to edit in smart mode.