I think that there should be a preview button for your pets profile for when you design it.So if want to see if you did a code or layout right you can preview it before saving it.
The current system doesn't bother me. It's not terribly difficult to have two tabs open - one with the pet profile and one with the coding - but it wouldn't hurt to have a preview option, either. shrugs
This topic is an open suggestion, located here. As such, I'll be locking this thread. Feel free to add your thoughts to the open topic. :)