In the original plans Vans gives you the option to put a lock similar to the forward baggage door to secure the canopy. I just didn’t like the look of that lock and never installed it. One other option to secure the canopy is with a locking mechanism on the aft end of the canopy using the canopy rail. The gang over at flyboysaccessories.com has one that fit what I wanted. The idea is that you drill a small #28 hole in the rail at just the right spot. Then slide there lock mount along the rail going forward. There is a pin that screws up and down allowing it to slide into the hole you drilled and preventing it form sliding fore/aft. Then you can add a lock, which they provide, and lock the mechanism in place. I added a small piece of the soft half of a Velcro strip to pad the canopy from the new lock.
It works great and is easily removed and hidden away in my tool bag. I won’t need to use this very much but nice to have when I will be away from the RV for longer periods of time at unknown airports.