A 3dsMax Script for Aligning Vertices by 2 or 4 Points
it Works with [Poly/Mesh/Shapes].
Install: Drag and drop the downloaded mzp file to 3dsmax viewport or from Scripting Menu/Run Script. after that you can find it in _My Sceripts_ Category, you can add it to quad menu or toolbar or assign shortcut to it.
How It Works: