Let it be easy to delete single plot areas
What feature do you want to see added?
if you get it wrong, clearing files and restarting the server is just a pain. and can be inconvenient to players sometimes. consider doing this.
Are there any alternatives?
no
Anything else?
If you make a single plot area, give each one a unique number instead of 1;1 (if you can)
The sign that tells you who owns the plot, have it so you can move the sign to whichever side of the square makes sense for you.
Have it so there is a command to delete the single plot area entirely if you think you've done it wrong and want to try again. Make the plugin a little easier to use. It'll benefit everybody in the long run. So I'd consider this if I were you, even if it will take time to implement.
the 1;1 thing, simply to distinguish the plots. I hate how the numbers only work inside a plot world, and not custom plots you make in a world that already exists.