Sometimes adding a point to a point group can be a bit of pain since you have to go into the Point Group Properties and add it in the Include Tab. This series of posts will go over how to add functionality where you can select a point, right click and have an option to add the point to a point group.This post used a lot of code from Through The Interface which allows the code to run on a selected object. If an object is not selected then the user is prompted to select a point. The code starting on Line 151 creates a point group in the drawing. This is used in this code to create a point group if a point group does not exist and in a later post when the user selects the Point Group the point should go in.
If you want to try it out before I finish the posts, you can download the compiled file here, type Netload to load the file and type AddPointToPointGroup at the command line to run the code. This code will only work in Civil 3D 2010. I still have to figure out how to modify the right click customization in the cui, so that part won’t work yet.