I'm assuming you have a multi-line text variable near the top of you macro, right?
If so, you can use the following to open your macro in the editor:
As you probably know, you can get your macro UUID by right-clicking, select Copy as... > Copy as UUID.
That's the simplest method I know. If you want to do something fancier, you can put the URL's in a text file. I do this in Markdown Link Tool.