Hi, and thank you for making RPM such a great resource. 
Before you point me to the doc or the Asset Designer: I know about all this, and I have already added custom textured modular assets as well as full custom outfits. Everything’s good.
BUT – and I’m pretty sure you see me coming – when will we be able to add custom models for modular assets? When I edit a customized modular asset in “Add & Manage”, I can remove the resource and replace it with a whole different GLB model… So it almost works! Unfortunately, this doesn’t allow body masking so the avatar’s body ends up protruding from the cloth here and there, and I can’t seem to do anything about it.
I’ve seen a link to register for access to the closed-beta tools but, when I try and fill in the form, an error says the first field isn’t filled (which isn’t true) and I can’t post the form.
So yeah, if you could help me out or just suggest a date when that feature will be available, I would be extremely grateful. Thanks for reading.