1. Install Torch From our one click MOD section HERE
2. Run the following commands in chat on your server
   
   !cleanup delete $      where $ is one of the following variables hastype, notype, hassubtype, nosubtype, blockslessthan, blocksgreaterthan, ownedby
   
   then a blocktype and owner or blocks variable
   
   For example
   
   !cleanup delete ownedby GTXGamer (delete any item owned by player called GTXGamer)
   !cleanup delete notype (delete any item that has notype)
   !cleanup delete hastype refinery (delete all refineries)
   !cleanup delete hassubtype largethruster (delete all sectors which have in them a "largethruster")
   !cleanup delete blockslessthan 1000 (delete any blocks within a sector which has less than 100 total blocks)
   !cleanup delete blocksgreaterthan 100000 (delete any blocks within a sector which has more than 100000 total blocks)
   !cleanup delete notype beacon blockslessthan 100 (delete any blocks within a sector that doesn't have a beacon and has less than 100 blocks)