If the “PIE menu mode” is activated on the general settings, the spGhost GUI will be replaced by the PIE menu.
You can access the PIE menu by clicking Alt+Shift+RMB which looks like this:
Once the PIE menu opens, you can release the “Alt+Shift” keys and then (while maintaining the RMB) click on any of the buttons to perform the desired action. The PIE menu will close only when you release the RMB so, you can perform various actions while the PIE menu maintains opened.Important: Please, be aware that the PIE menu itself can occlude some of the Adobe Substance 3D Painter GUI making impossible for spGhost to find some of the references. The viewport its always a safe place to make use of it.