This .cmd file didn't work for me.
My path is this > C:\Program Files (x86)\PEVSoft\Images2TGA.exe -trawl E:\Program Files (x86)\SteamLibrary\steamapps\common\Trainz Railroad Simulator 2019\Editing\%1%
Not sure if the qoutes are necessary or if this won't work with a Steam install?
Rico