I don't know the answer, but there is a gpxpatch forum at realgpx.com forum [
realgpx.com] were Rene Smith the developer of gpxpatch program will answer questions every now and then, so try to ask from him there if anyone doesn't know the answer here
this would be really nice thing, if it will be able to be made.
Edited 1 time(s). Last edit at 03/17/2010 11:06PM by vesuvius.