I’ve had a play with this in the past https://forums.eagle.ru/showpost.php?p=2875637&postcount=7.
There is a lua there for you to start with. I added options for single and twin Mk82s, mk83, mk84 snakes and twin rail aim-9s
Bombs etc won’t drop from the other pylons but you can carry them. Can fire all 4 Aim9s though.