Maybe not many of you use the Macro record and Macro play functions. I do!
Imagine my dismay when I couldn't find it in the shortcut key map area!
Well it's still there, you just can't see it. Since it never had default keys assigned to it and no buttons anywhere to be seen, it was an easy function to overlook. It was really handy when you needed it.
I used ctrl-shift-' and ctrl-shift-enter for record and play.
Workaround: Go to a prior version of sqldeveloper and export your shortcut keys (including your good old macro map) and import them to your 4 EA3 and it works like a champ!