It's very simple to do mods for Money, Products into Silos, Horseshoes, Missions, Hectares threshed & sown. All you have to do is locate your save game within My Games folder, Farming Simulator 2013 folder, (savegame folder here) then look for file careerSavegame.xml and mod those that I mentioned earlier using Notepad.exe ;o) Same goes for Farming Simulator 2015