The Slide Edge Tool lets you reposition a selection of edges or entire edge loops on a polygon mesh. You can slide an edge along its shared perpendicular edges or in the direction of the shared vertex normals.
To slide a selection of polygon edges
- Select the edges you want to slide on the polygonal mesh.
You can select the edges individually by Shift-selecting the edges or by selecting an entire edge loop. See Select an edge loop.
Note: You can convert an existing selection to an edge loop using Select > Convert Selection > To Edge Loop, or use the pickwalk feature (Left and right arrow hotkeys). - Select Mesh Tools > Slide Edge Tool >
. 
-drag to slide the selected edges. The vertices associated with the selected edges move along their shared perpendicular edges.
Tip: You can press the Shift key to move the edges/edge loop along each vertex normal.