Our product addresses both of those concerns. The product is a finished receptacle yet classified as a supporting device. The receptacles are single gang, left, center, & right. For example, if a two-gang receptacle is installed and later there is a need to expand the system, simply remove the piece of wallboard, slide the right side over, and insert a center section. This process may be repeated numerous times.
In the above described process, expandability, normally requires expanding the internal support structure. My receptacles include a clip. As the system is expanded, each section is self-retaining. The unique design, & exclusivity of this product is that it eliminates the need to install a supporting structure in the wall, prior to installing the product.
The clip may also be removed for installation into an existing support structure. This product uses keystones, with the keystones, the product is forever adaptable. This product allows for infinite expandability, adaptability, & simplicity of installation. It is the only self-retaining & gangable patented product in its classification.