Put this jar file into your plugins directory, together with LuckPerms if you don't, enable meta-stacking on LuckPerms if needed.

To change the LuckPerms weight level of the pre- and suffixes just go to the config.yml belonging to PrefixSuffixManager and change the line
lp-presuf-weight: 10 to whatever number you like.

First of all, a presuf is what I call what my plugin does, it allows your clients to choose between having a prefix and a suffix, or both at the same time, now, make a presuf by running the command (if you have permission prefixsuffixmanager.addtoconfig) /presuf add {your presuf (supports colorcodes)} or by changing the config.yml

Use the /presuf get command to check your own presufs, if you have the prefixsuffixmanager.getothers you can also check others' presufs by using /presuf get {player}(the player doesn't have to be online)

If you have made a presuf with the information above you can give your players access to a presuf by using the command /presuf give {player}(Again, doesn't have to be online) {presuf}, if you have the permission prefixsuffixmanager.give

do this by executing the command /presuf listall, you do need the prefixsuffixmanager.listall permission

Use them by doing /presuf switch {prefix/suffix} {presuf}, if you want to remove them do /presuf switch {prefix/suffix} None