Still not working. My server has one track named default and even when I add luckperms.user.promote.[track].<old/new-group> it does not let me execute the command. And I do have the option enabled in the config.
My default track goes default--->member--->trusted---->moderator--->admin---->owner
I want it so that the user inheriting trusted or higher can promote/demote players up to the group below them.
i.e. for moderator, I put, luckperms.user.promote.default.trusted, luckperms.user.demote.default.member, and for trusted I put luckperms.user.promote.default.member, luckperms.user.demote.default.default,
When I add the luckperms.user.promote/demote nodes to any group, they can still promote all the way up to owner, and when I take the main luckperms.user.promote/demote off, they can't even run the command at all.
I just want the equivalent of essentials.membership.manage.
maybe add /promote [user] [track] and /demote [user] [track] commands?
edit: I followed the tutorial posted here: https://github.com/lucko/LuckPerms/wiki/Argument-based-command-permissions#checks-when-a-player-makes-changes-with-a-set-of-specific-arguments

There's a caveat on Sponge that's very easy to miss:
The permission xxx also adds all permissions that start with xxx..
That's why when you add the node luckperms.user.promote you also add all other nodes that start with luckperms.user.promote, like luckperms.user.promote.default.default.
The way around this (or if you only want one node and no child nodes on Sponge) is by setting the node you want (xxx) to true and xxx.* to false. Then only xxx is true. If you later also set xxx.yyy it will be true regardless.

I hope that made sense to you.
And my apologies for my late reply. I was fairly busy.

Thank you for getting back! I will give this a try and let you know.