For shortcuts, https://www.dropbox.com/s/jg4fs4i8zw5bxt7/Blender%203.0%20Shortcuts%20v1.2.pdf?dl=0 that's for 3.0. I'm sure you can find them if you're using an earlier version.

I've never used the setup room for rigging clothing. I use the fitting room or more likely, make it dynamic. That would be something to ask in the poser forum. there are many in there that know what they're doing.

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