I have seen multiple servers have commands like /shop and /wild and stuff similar to that. I just want to know is there a plugins where i can get that? or do you need to code it? also i have seen signs that you right-click and get warped somewhere, but they have bold white writing, not [Warp] parkour or something like that.

it would be really helpful if someone could respond thanks.
p.s my server is: Technocraft.mcph.co:25891