Note this is as of 6/28/2015
Making most content for TANE is the same as for TS9, TS10, and TS12. As of now most content has to be made in TS12 due to a bug that gives an ERROR on all content that has a mesh over 500 polys. This is with "trainz-build 4.2" and the new Tags will give an ERROR in 3.7.You will have to change your work flow as TANE has an all new CM. There are some things that are gone for good like CCP others that should come with a update.
Make new version is gone and clone will use the next highest KUID number that CM knows. If you open for edit and copy the folder the name will have the full KUID number added to the front.
You can now view all content from CM and edit the config.txt.
Textures look lighter to me than in TS12, I think this is due to no gamma adjustment in TANE.
Animation mostly works, I have two coal cars one works OK the other has the bogeys and doors offset, I can not see why and the one that dose not look right was an old Gmax one and I can not get to the old files, needs a re-build.
Every thing with a mesh over 500 polys must now have LOD.
Nightmode lighting has something wrong in it, some work some do not.
The "set smooth" can give very odd looks on some parts, it looks like normal map but is not.
(This has been fixed)
And lastly scripts may not work, this happens with every new Trainz.
Will post if/when I know more.