Constructing a 24x12 wood stage in a 400 cap room at a local club. The 12' depth is part of a virtual room division but I would like to include a stage front 'cover' in 8' sections that would be hinged at the top as to flip up and provide an extra 2' or so on the front sections for room for wedges..etc...if needed. Wondering about a simple and safe method for securing legs in place to hold up these sections when extended. Ideas?