Hi, I have the TS-2021 simulator and I am having trouble with the following on the A4 union south Africa train: After a minute I receive a note that the loco is out of water. How do I go about placing more water in the unit? Also, how do I go about moving the Large vacuum steam injector , the Exhaust steam injector and last the live steam injector to the correct positions? Any help would be appreciated. Thanks!