Truss hinge with variations in angular settings

A truss hinge adapted to be removably attached to a structure, the truss hinge comprising:

• a first hinging part, having a first connection which connects to a first truss;
• a second hinging part, hinged relative to said first hinging part, and having a second connection which connects to a second truss;
• a first zero holding surface located on said first hinging part and a second zero holding surface located on said second hinging part, the first and second zero holding surfaces are configured to be connected to one another and held at a 0° angle relative to one another;
• a plurality of hinging surfaces which each define a specified maximum amount of angular movement between said first truss and said second truss more than 0°, and
• wherein said plurality of hinging surfaces include a first hinging surface and a second hinging surface located on said first hinging part which are both connected to a same third hinging surface that is located on said second hinging part allowing movement between said first truss and said second truss by an angular amount up to said specified amount of angular movement.