Sure, we can add another player to your shop region... though it has to be done by a mod. For instant gratification... just /msg a mod when you are in game and ask them to add the person to your shop region. That person will be able to put their own shop chests down and will be able to build on the plot as well. Or, if there isn't a mod online you can send me a message in discord. Let me know who you want added and I can do it next time I am online.
After talking it over, I think we will need a bigger shop space. I have taken my shop down from Purple1_S2 and would like to request the plot that was supposed to have been taken down December 6th - Green2_S4. A player named KhuKhu had it rented and didn't do anything with it. Is that one spoken for yet?