I am an experienced Motion user but this has me stumped. I must have set my Motion preferences to open previous projects upon launch. Unfortunately these projects have missing media and it is opening 6 or 7 of them. Each one has a dialog screen asking for missing media but I can not access any of them - I just get the error beep from my machine. The only way out is to force quit.
What I need to know is how to change the Motion preferences outside of opening Motion so that it ONLY opens one project - the project I need to access today.