Mouse Wheel Grow/Shrink Selection
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.
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:
Scroll mouse wheel out to grow vert/edge/face Loop selection.
Scroll mouse wheel in to shrink vert/edge/face Loop selection.
Ctrl + scroll out to grow edge Loop in one direction.
Ctrl + scroll in to shrink edge Loop in same direction.
Alt + scroll out to grow edge Loop in oposite direction.
Alt + scroll in to shrink edge Loop in same direction
-- Grow/Shrink edge Ring selection --
Shift + scroll out to grow edge RIng.
Shift + scroll in to shrink edge Ring.
Shift + Ctrl + scroll out to grow edge ring in one direction.
Shift + Ctrl + scroll in to shrink edge ring in same direction.
Shift + Alt + scroll out to grow edge ring in oposite direction.
Shift + Alt + scroll in to shrink edge ring in same direction.
Drag and drop mzp file in 3ds max. Go to Customize->Customize user interface. The script will appear in the "miauu" category.
The script was tested on max 2009 but should work on older version too.