add multiple child records based on parent criteria with formula url button

Thanks for the quick response! I had thought about that option as well, but there is the potential to select more than one "Project type", so that would require the clicking of more than one button. I'm trying to simplify the process for the end user by consolidating all the individual buttons into one. Also, I generally try to keep the number of form rules in play to a minimum. If there isn't a way, without creating a customer JS page, I'll definitely resort to this. Thanks!