This script will allows you to use the mouse wheel to grow and shrink verts/edges/faces selection on Editable Poly and Edit_Poly objects.
Usage:
Assign it to a keyboard shortcut or button. After pressing the keyboard key/button, use the mouse wheel to grow or shrink the selection. While the tool is active you can pan, rotate and zoom(Ctrl+Alt+MMB) object in viewport and continue to add new verts/edges/faces to selection. Click on viewport with LMB or RMB to stop the tool.
How the script works:
Run it.
