The UVPackmaster UI is located in the N-panel of the UV editor, in the UVPackmaster3 tab:
The UVPackmaster UI is split into a set of multi panels:
You choose which multi panels to show by using toggles on the left in the UVPackmaster3 tab. Every toggle drives a single multi panel. You can press a toggle with Shift in order to enable more than one multi panel at a given moment. Contents of currently selected multi panels are displayed in the main column of the UVPackmaster3 tab.
|Provides a set of useful tools which are always displayed on the very top of the tab, if the multi panel is enabled.
|Provides UV packing functionalities of UVPackmaster.
|Provides UV aligning (stacking) functionalities of UVPackmaster.
|Provides tools exclusively dedicated to defining and tuning island grouping schemes.
|Miscellaneous tools which do not suit to any other category.
|Shows the statistics of the last packing operation.
|Displays the global properties of the UVPackmaster add-on.