After reading a post yesterday on a similar subject, I removed my seat and took a look around. Someone had suggested disabling the seat latch so you could access the panier latches, and taking that approach to heart I saw that a simple linkage from the seat-release lever where it connected with the seat release cable would be easy to do. So I did some experimenting and found that a short length of stainless steel TIG welding rod (3/32" dia) could be bent to "hook" between the end of the release lever and the cable pin very nicely. I then bent an "eye" in this bit of rod so that it was just forward of the release lever, and a second eye in another length of welding rod to attach to this eye. I then threaded this second rod through the usual vent hole, forward of the release lever, and bent it backward to lie in the "valley" on the top edge of this vent hole and cut it so roughly an inch of rod was in the valley. By using care this "V" in the rod can be placed so the seat latch spring holds a slight tension on the assembly, and the "V" is snugged against the top edge of the vent slot.
Now I don't need to open the port panier to release the seat, I can use my pocket knife to hook the welding rod at the vent and pull forward about 3/8" for a release. My feeling is that this emergency access to the panier latches will save me a great deal of pain some day, and the bit of welding rod that is exposed is fairly unobtrusive. A perfectionist could easily cover the exposed part with some black heat-shrink tubing.
Bill