I'd like to suggest adding a button called “Update” or something similar, which would allow users to replace a saved build with the current profile setup without losing the attached image or its positioning/cropping.
Currently, whenever I make a small change to a my build, I have to delete the previous build and create a new one from scratch — including re-adjusting the image all over again.
With this button, it would be much easier to refresh a saved build without redoing all the visual alignment work.
This would greatly improve the user experience and make maintaining custom builds much faster and more convenient.