Look, it’s all very simple. PM was replaced by IM which IMHO was AOK, and you can always use PEV PM2IM to convert PM to IM anyway, then use CM to upload to the DLS, but for TANE your IM must have LOD which can be LM, but not with scenery because you’ll get a VE for sure. And of course for TRS and an FBX with PBR which includes your AO, you still need LOD but it’s different LOD. CM is still needed and its DBR and EDR are much faster now, but on the other hand PEV PM2IM and Images2TGA are useless and BMP and TGA are being superseded by PNG. Don’t worry because PS and GIMP are still good for that, although a lot of us are moving to SP.. A quick PM to the CRG or an OP on the forum is always an option if you are like, WTF?
HTH
Dino