Creative
In the creative area there is a grid of plots that you can build on one you claim a plot. To claim a plot use the command /p claim. Once you claimed a plot you can do thins such as adding or trusting a player to build in you plot, using a tool called world edit to help with building, or merging multiple adjacent claimed plots together into one plot
Worldedit:
Worldedit Is available to anyone in the creative world and it is restricted to plots you have.
For all worldedit commands you can do //help. Most world edit commands have 2 slashes instead of 1
Here is documentation on how to use worldedit: https://worldedit.enginehub.org/en/latest/usage/
Plot Commands:
These are the basic commands for the creative plots
All plot related creative commands begin with /plot or /p
/plot help - All commands and how to use them
/plot claim - Claims the plot you are in if it is unclaimed
/plot merge - If you ow a plot next to the plot you are currently in,
/plot add - Allow a user to build in a plot while the plot owner is online
/plot trust - Allow a user to build in a plot and use WorldEdit while the plot owner is offline