For when my RV-6 is parked I have a second slot for the lock that leaves the canopy open 3-4". Maybe you could drill a hole in the track and have a spring-loaded pin that you push down into the hole. It should stay put while the canopy is open due to the canopy wanting to slide open further (at least on a taildragger). To disengage it, push the canopy towards closed a bit, the pin pops out and you can open or close the canopy all the way. Having the "default" pin position as disengaged lessens it interfering with a hasty exit.
RV-6 N207AM w/G3X, 1,600 hours +
South St. Paul, MN (KSGS)
A&P, EAA Tech Counselor
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