Hi Lisa and welcome. Always nice to meet a new E31 owner- we’ve had ours for a little over three years and they are great boats.
When you say “cockpit unobstructed”, if you mean in terms of cockpit coverage, what Loren suggests works well, it is how ours was set up. Ours zipped in and we just moved the traveler all the way to one side, eased the sheet, clip a spare line to the main sheet attachment on the boom and the other end to the bottom of a stanchion. Snug the sheet to keep swaying to a minimum and zipped the panel in place. Works fine docked or at anchor. I say all that past tense as we just replaced our dodger and bimini, and I have not added that feature to the new one yet.
If you mean keeping the traveler out of the way of the companionway, that’s more complicated. There is a discussion on the Sailing Anarchy forum about the pros and cons of a traveler vs a double main sheet system.
Traveler or double main sheet
Never seen one in person but the thread is an interesting discussion.