<<I would like to make the programming track DC capable so I can test out
the old locos. Is there a way I can do this.>>
Yes there is:
1) Make sure the programming track is _electrically_ isolated from the rest
of the layout (even better is a programming track on the work bench isolated
from the layout).
2) Acquire a double pole double throw switch (ideally with a center off
3) Wire the center poles to the track.
4) Wire your command station to one side of the DPDT, and your DC power pack
to the other.
Throw the DPDT as needed to switch between the supplies.