We all know trying to find the center of your plot can be a pain, So this is a simple command that I think will be use full for some to find the middle block of their plot , for example /plot center or any other commands you can think of
The only issue I see with this is that plots are 60x60 making the center a 2x2 area, and listing all coordinate points of each of the 4 blocks could make the interface 'messy'.
What if, instead of listing the center of the property, the command listed how far away the two nearest edges are/what direction they're in?
Or it simply made the blocks change to like a 2x2 of gold blocks, visible only by the player, and if punched (or updated in anyway) changed back to the previous block? I've seen this feature in a land claiming plugin, and it's relatively useful in many circumstances.
How about just walking in two different directions with the coordinates (F3) up on the screen. Find the halfway point.