User Guide > Modeling > Mapping UVs > UVs menu reference > Create UVs >

Create UVs > Set Current UV Set

Lets you specify which UV set you want to use for a particular polygon mesh. You specify which set you want by typing the name of the UV set in the text field that appears. This feature is also available for use from the Polygons menu in the UV Texture Editor.

Create UVs > Set Current UV Set...

UV set name: Type the name of the UV set you want to switch to in this text field.