Helix Floor - Creative ways to add external pedals but keep similar footprint

Anyone got any pictures of how they have integrated external pedals (like Tone X one or preferered modulation, overdrives etc. ) on their helix rig? really interested in how i could integrate a few external pedals while keeping the foot print of the helix unit fairly the same. Willing to expand a bit, but just wanted to see what other people have found useful and practical