I'm a newb to using App Designer. I've built the GUI that works wonderfully, and can open it programmatically from my main .m script. However, I cannot for the life of me figure out how to force the .m script to wait for the App GUI to close. I figure it has something to do with assigning modality in App Designer. I've tried using a waitfor indexing with a variable written to my base workspace from the app to no avail. I've tried using a while condition, also to no avail. Are there any ways to make the main script wait for the app to close before continuing?