The Problem

There is a vanilla /fill command, but it has a limited number of blocks that it can be used for and you have to type in the coords of the corner blocks.

A Solution

A //fill command that would function as a better version of the /fill command. You could use the wand to designate coordinates and it wouldn't have the block limit that the vanilla command has. The command would be //fill (block) [nbt]

Alternatives

The //replace command does work, but you need to replace every block type in order to get a consistent area.

Anything Else?

No response

you should at least like, read the quick start on the docs. this is the most basic stuff in the plugin.

edit: i'd also note that if you're coming from a vanilla-command perspective, you should drop all your preconceived notions from that. WE has existed for many years before vanilla got any editing commands and their names and syntaxes don't match ours.