I too have a door dasher who would be toast outdoors, as she is completely fearless (and clueless) to the dangers of the many critters that inhabit our new property where our camper is kept.
I thought about constructing some type of "catio" or screen room accessible from an open window, but given the distance to the ground, and well, now I have a screenless window to deal with, I opted for a purchased pop-up dog kennel with a floor, with plenty of screening for ventilation. The largest I could find. Cats are escape artists, and I didn't want to bet that she couldn't wriggle under anything that was staked to the ground. She seems content, but it doesn't solve the problem of her wanting to run for freedom anytime I think about opening the camper door.
Since she's not having the collar thing, I simply toss her in a smaller wire kennel in the camper when I know I'll be in and out often. Our camper doesn't have the feature, but perhaps you could use an existing access door, such as a garbage container or laundry door, to create a closeble pet door for her to use to access an outdoor kennel.
