Put plots in prison. There are plots in OpPrison, but not in prison. People would have space to put stuff instead of just only having an echest. The plots in the prison are not what I am talking about. Those plots should be moved to a plot world. There can be a price of like 100k to keep (No Rent).
I don't support because it isn't needed. Adding plots would ruin the whole aspect of ranking up to free-man +. Also it's way too OP for players, lol. And that's what cells are for, and plots.
Plots would ruin one of the main parts of prison, factions. You cannot add plots to a factions game mode.