Tag Verts

This assigns selected vertices to a vertex group called "tagged_verts" that can be used for the Panel Screws and Quad Slice operators.

This operator only appears in the Mesh submenu when the active object is in edit mode.

Figure 1

In Figure 1, vertices are selected in interval and Tag Verts was used to assign them in a vertex group. The Panel Screws operator was then used to add screws based on their location by using the Tagged Verts Only toggle.

Figure 2

In Figure 2, by using the Tagged Verts Only toggle in Quad Slice, the edge cuts will only generate from the vertices assigned to the vertex groups created by the Tag Verts operator.

This feature allows a more controlled use of the Quad Slice and Panel Screws operator which is very helpful in some instances of topology.