Atm it is not possible to build in the Prison Mines, which is really annoying if you want to collect curtain Blocks or Ores. It would just be easier to get around there and the Blocks placed would just get deleted with the next reset. There should ofc be a Hightlimit for building, so nobody could pillar up and do smth stupid, so I suggest a Buildhight with a max of +1 Block over the Mine itself. Would be awesome if you added this!