Here’s a feature idea for the Sketchy FFD (Free-Form Deformation) SketchUp plugin:
Generate the Cage: Right-click the group, go to the FFD menu, and select your desired grid size (e.g., 3x3).
Elias, an architect pulling an all-nighter, clicked "Install." He needed to warp a rigid skyscraper model into something fluid, something "impossible." The plugin added a single, rusted-looking icon to his toolbar: a wireframe cube with a glowing red dot at its center.
Assuming you want to try the original or a community fork, here is the installation pathway.