basically same concept as most cars have, even some modern.
fun part is removing that clip, and hopefully it does not launch and fly away. they are readily available at parts stores :) you can use a putty knife, flat blade screwdriver, etc. takes time & patience!!
i push back on the fabric panel so i can peek in between, then i find which way the pin is facing, turn the handle so i can find it, then push on one side of the pin a tad, then the other, and back and forth till it pops out or release from the shaft. putting it back on is a whole lot easier !!
https://vccachat.org/ubbthreads.php/ubb/showflat/Number/411068