How to break complex elements created from a Corridor?

Working in PowerGEOPAK V8i. Using the AQCESSRAMP software from Transoft to place ADA Curb Ramps within my design.

All of the lines which make up my corridor (TBC, Flow Line, Back of Sidewalk, etc.) are all complex elements. If i select any one of them, say the TBC, it will select the TBC on that side of my corridor for the entire length. Even though visually the TBC line on my mainline corridor stops at intersections where i have Civil Cells. It will select ALL of the TBC line(s) on that side. What this means though is that the TBC line is 7000+ feet in length, made up of 5 or 6 elements. Unfortunately the AQCESSRAMP software will not let me place a ADA ramp if the geometry is longer than 6561 ft. So my thought was to "break" the complex element of the TBC between my intersections, but i dont know how to do that while keeping the intelligence of the corridor?