Hello Guys!
Yesterday I was singing the HALELUIA! I've managed to create an animation with 2048 frames. It works well.
Shortly my method:
1. I've created the animation in gmax with 2048 frames. (it is a simple train moving on a long track)
2. I set the time configuration back to 0 - 1023. I've exported it to trainanim_0.asm.
3. I reset the time configuration to 1024-2048.
4. In the time configuration panel, I pushed the Re-Scale button and I re-scaled it 0-1023. So actualy the second part of the animation was moved forward in the timeline (

this sounds like in the star trek

)
5. I've exported this part to trainanim2_0.asm.
6. I opened the second file trainanim2_0.asm copied the animation frames to the excel. I set in the excel that the frame number should start with 1024.
7. I've pasted the excel modified frames to trainanim_0.asm. (actualy this you have to do it twice bec. for one object there is 2 table for the animation, but the code is very similar, the excel can handle both)
8. Than I've started to tweak the trainanim_0.asm as described in the wiki. To tell the truth this was the difficult part.
9. When it was done, of course I've re-generated the mdl than compiled to bgl and it works fine in FS!
In the attachement you can find the excel and the final trainanim_0.asm and the trainanim2_0.asm. You can have a look.
Now I have a little bit more experience. What I can tell that with this excel to extend the animation keyframes are easy but the rest of the tweak is difficult. The problem with the wiki description that it is too much dealing with the theory. He discribe what is what, but for us the only thing is important which part shall we change and how.
Now I have a question. As I'll animate a train which is actualy 3 objects moving. When I export it to two asm file how can I identify which part belongs to which objects? To make it clear. I'm affraid when I export the first part he will compile it to the asm with this sequence : Object1, object2, object3. But maybe when I export the second asm he will do the following seq. : object1, object3, object2. How can I be sure when I copiing the code from the second asm that I paste it to the right part in the original asm?