If this is move/idle during combat, there are graphical guides for each weapon type included. If this is move/idle outside of combat, then there's no support for that, and you'll need to make up your own mind on which weapon sprites to use and where to put them.
As I said: holding a weapon outside of combat is not a supported animation. That means you'll need to choose and place the weapon sprites yourself. You can copy/paste the weapons into a new page 1 layer, or draw from the weapon sprite source file in-engine at runtime. But I can't help you with either of these options, I am not a gamedev instructor. If you want to do this thing, you will need to flex your brain and make it happen on your own. Good luck!