It's a macroscript. When you run it it adds the script ro the usermacros folder and then you need to set it to a hotkey or toolbar in the customise ui dialogue.
Try typing FreeSceneBitmaps() into the listener and hit enter. This might help. If it works just drag and drop the text from the listener onto the toolbar.
I think that blender has that feature.Basically when you install an add that is used for editing meshes it should appear as a button in mesh tools toolbar.
odd behavior it should only do that if there was no lattice point in the selection, you could always turn off selection of poly surfaces from the toolbar.
$.pivot = [0,0,0] -- select and drag this text to a toolbar in max and now you have a one-click button Btw. the default shortcut for Affect Pivot is the Insert key.