Mesh primitive that behaves similat to the Patch Grid. Point helpers are used as handles, which means animating them or using wire paramaters with them is easy. Linking the helpers to another parent would break it, though, so if you want to do something like that, use constraints instead (Link constraint or Position constraint depending on what you want to achieve).
Installation: Copy the .ms file to your scripts\startup folder or run as a script if you want to try it out first. The object primitive will be available under Examples in the Create panel.