symmetry cloner is not working

How do I actually paste a clone or mirror a prop? I'm trying to make a couple of asymmetric train bodies symmetrical and nothing's happening.

when i spawn the speedometer i get this error [GMod's Tools (GTools)] lua/entities/dbot_speedmeter.lua:161: attempt to index global 'ENT' (a nil value)
1. TriggerWireOutputs - lua/entities/dbot_speedmeter.lua:161
2. unknown - lua/entities/dbot_speedmeter.lua:192

there a way to fix that?

There a reason why Model Manipulator limits me to models under serverside when im on single player, i kind of have addons that add new models but its saying they arent valid

Can I disable this glowing thing around NPCs? I don't like it

how do you open it

i rate it 10/10, espicially the Multi NoCollide and Multi Color tool, i didn't find those anywhere else.

It doesn't contain anything i used in my car (It have a chassis that was in jackpody's tutorial), and it broked the front wheels. I didn't deleted E2Power, so Setang Steering E2 must work! So i used only multi-parent in my car (Multi-parent is only one tool that is in description of this addon too), so i don't know WHY it broked? Please answer, but still, good toolpack i see! 9/10

how i get gmod thing

Yes, sorry for that.
Worked fine, thanks a lot!!!

You don't see tooltip when you are holding Symmetry Clonner tool? Left mouse click - Select an entity, Right mouse click - select an entity that would be working as symmetry point, then click <use button> + Right click to create symmetry

Can you please explain how does the Symmetry Cloner work? I'm making in a car, and i want to clone his side

Cool addon by the way. :)

Well, I know that, but it's a little confusing to use. I'm alright now though since I used precision alignment.

Symmetry cloner

I'm making a ship, and I've done only one side. How would I mirror one side to the other?