I think HackMew has already incorporated this into XSE..It's called Script Templates, if I'm not mistaken.
This quick method of yours, is just a layout to me. It's not for lazy hackers, but let's just say you have a date to finish your hack, I would love for there to be a quick way to script, but I always do more than "wanted" to perfect my scripts. No one wants to rush, right? I think these layouts would prevent errors, since you're copying error free scripts and modifying them.
...So this really wouldn't help me out, but I see how it can help. Keep up the good work, more people like you (the kind that love to help) should be around. I also think that people, that take the time to learn scripting but something is preventing them from grasping it fully, should use these methods. As a guide =)