[aprssig] Premptive Digipeating (b) PATH MARKING (used)

[Robert Bruninga]

> I do not think you should remove prior *used* digis,
> so if your premptive digi sees

K4HG>APRS,WIDE*,WIDE,WIDE,WB4APR,GATE:. . .

> it should send    K4HG>APRS,WIDE,WB4APR*,GATE:. . .

Excellent suggestion!  SO maybe we need to add an option for Enabling
PREMPTIVE digipeating at a digi or gateway:

OFF means no preemptive digipeating

DROP means to drop everything prior to the PREEMPT.

USED means to drop everything prior that was not used

MARK means to retain the path and mark it somehow (including showing which
ones were used and which ones were not...


Bob, Wb4APR