Hi @mythcat! Thanks for the feedbacks!
In order to activate the panel for adding the UI to new models indeed the Developement Mode option should be enabled. If also the other two are needed for the panel to appear, it's a bug. I'll investigate that, thanks for reporting it!
Also I'm preparing new tutorial materials as I go. I still have to finish some major features, but after that I can make a video on how to setup everything.
If you have any other problem, feel free to open an Issue on Github: https://github.com/Mustard2/MustardUI/
EDIT: I checked and the panel can be enabled if Developement mode is selected alone. It's not needed to enable everything. Just remember that if you are using a model from someone else, you do not need to enable anything in the addon settings. You need the Developement mode (and the others if needed) only if you wish to add the UI to your own armature or modify a model which already provides a MustardUI.
very good and nice to see it's here on the official blender site.
Excellent add-on, I'm sure I'm not using it to it's fullest yet, but in a couple of hours I've setup clothing, masking, and quick value changes in materials for three models. Very easy to work with great documentation.
Congrats on the release of this along with Simplify your rigs and models are the best!
It was in fact easy to set-up and use.
This help to manage easy an character. I test on 4.3.2 after install I need to check debug and experimental because is not added from first time on interface , after check all feature the tab show this extension. Lack of video tutorial about how can be used with Blender 3D.