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In Maya, it's called soft select. In Blender it's called proportional editing mode. I am looking for a tool that will let me move a grip, causing all of the nearby vertices to move in the same direction. The amount of movement depends on how close it is to the selected grip as well as how sharp you set your falloff. Some videos to give you an idea of what i'm talking about: Soft Select - Proportional Editing - The general idea is that when the user selects a grip, the LISP would search for all valid vertices in the maximum falloff range. Next, when the user moves (or scales, scale would be cool too) that grip, each affected vertex moves in that direction at a percentage of the distance that the target vertex has moved, depending on how close it is to that target vertex. Bonus points if there is also an option that allows the code to only affect lines that are connected to the target vertex by being part of the same polyline. Additional bonus points if the code is heavily commented so that I can see what's going on. This program is way over my head, and I would really love to learn how it would be done. **EDIT** I don't care if it works in 3d or not. I mostly just work with 2d when using AutoCAD.