You can use the following Quad Draw hotkeys to expedite your retopology workflow.
Operation
Hotkey
Create vertices.
See Retopologize a mesh with Quad Draw.
Click the reference surface or grid.
Create polygons.
-click.
Draw polygon strips.
See Create polygon strips with Quad Draw.
+ -drag along the reference surface or grid.
Tweak components.
-drag components.
Tweak edge loops.
+ -drag an edge loop.
Delete faces.
-click a face.
Delete edge loops.
-click an edge.
Insert edge loops.
See Edit polygons with Quad Draw.
-drag the cursor over an edge, and then click to insert a loop.
Extend edges.
See Extend edges with Quad Draw.
+ -drag an existing edge or vertex.
Extend edge loops.
+ + -drag a boundary edge.
Smooth topology.
See Relax vertices with Quad Draw.
Drag the cursor over vertices.
Except where otherwise noted, this work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License
Except where otherwise noted, this work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License
-click.
+ 
-drag components.
Tweak edge loops.
