Unfortunately it is only possible to load ONE AVI file into the new GKnot, but there is a workaround. GKnot can now open AviSynth scripts(!) so you only create a .avs file with this single line:
Code:
SegmentedAviSource("capture.avi")
...and open it in GKnot. This will setup GKnot correctly for your convenience.
It is then possible to edit the final AVS to incorporate this line instead of
AviSource("capture.avs")