Those that have followed my blog a bit lately, might already have noticed that I have been working at a new tool. I called it ModelConverterX and as the name already indicates the main functionality will be that it allows you to convert models. The main focus is that the tool should allow you to convert older objects to the FsX MDL format. So for example it allows you to import your old API macro and save it again as a MDL object. This allows you to reuse your old objects with the newer techniques. Of course it does not give you any source code that you can edit, so if you want to alter the object as well, it might be better to design it from scratch. But if you want to save some of your hard work, this tool might be just what you need. For the first alpha version, that I hope to put on the forum soon, the tool will be able to load API macros and save them again as FsX X file that you can compile with XtoMDL. For future version I want to add more formats, like reading Fs2004 MDL objects or OpenFlight files as well. And for the export I am thinking of being able to export as OpenFlight as well. But that are ideas for the future, the first and main focus is on converting old API macros (and also SCM macros btw). Other ideas I have are to add the ability to perform some tweaks on the objects as well. It seems the FsX format is a little more limited in this aspect, so the tool might not be able to perform as many tweaks as MDL Tweaker can, but I think some useful tweaks will always appear. I am thinking about a functionality to help you in creating the lower detail LODs for example. So that is the basic idea I have with this tool. If there are any questions or suggestions please let me know. I am going back to the coding again now, so that I can release the version alpha version soon. Oh, and don't expect that version to be bug free, I'll need you to test it with your macros and provide me feedback to get out all of the problems that will certainly occur .