Can you add workshop weapons to the TTT pointshop on a server hosted from the 'start new game' menu?

Title explains it all.

Yes, you can.

Assuming you’re going to ask “how”, just create a new pointshop weapon and use the workshop weapon’s class for the WeaponClass variable and the weapon’s model for the Model variable of the pointshop weapon. If you’re unsure how to get the class and model, you can extract the workshop’s .gma file and find the class/model there. Hope this helps!