If you don't mind using javascript, and using a kind of a hack, you can use this library Pause all but this script and unpause all. It has a block that you can use to pause other scripts in this sprite, and more.
But I would use this as a last resort, since wait until might be even better. I also use stop other scripts in sprite, then I do something, then broadcast a message to start everything back up without resetting the project.