To select a UV edge loop
A UV edge loop is an edge loop that is bounded by UV boundaries rather than edge boundaries.
- Double-click an edge.
The entire edge loop is selected.
To select a partial vertex/face/UV/edge loop
- Select a component (vertex, face, UV, or edge)
- Shift + double-click a non-adjacent component.
A partial loop is selected.
To deselect a vertex/face/UV/edge loop
- Ctrl-click a selected component.
- Do one of the following:
- Ctrl + double-click an adjacent component to deselect a full loop.
- Ctrl + double-click a non-adjacent component to deselect a partial loop.