Hi
Thanks for downloading TrakAxPC and sending us your feedback.
At the moment we have a limit of 640x480 @ 30 fps. We will be looking at updating this feature and adding new features in new releases in the future.
With your second question. You can fade between transitions by placing in a a video envelope on the track channel and then adjusting it.
I have included a screenshot to show you how to place a video envelope.
With video envelopes, you can create fades quickly and easily.
If you have any more questions, please do not hesiate to contact us.
best regards
Cormac
The TrakAx team.