I tried to understand but didn't. Sorry...
Same here. What do you mean with layers?
Does it contribute to the understanding if I mention that I have about 500 pushins that all are saved in one(1) .ptm file? Almost every pushpin contains important information that I need for further travels. I imported a slightly smaller amount of pushpins (all then saved in a .axe file) from an earlier version of AutoRoute. Now, I want to do the opposite (import/open this one and only .ptm file in AutoRoute. Please let me know if you understand what I tried to explain.
I've also just tried ITN Converter. It didn't work with this, too.