I thought you might enjoy seeing this post from Howard, the technical support guy from AstroPhysics. He was responding to a customer's inquiry on the AP Yahoo groups forum:

The old v.4.1.25 driver does not have a way to set custom park
positions. There are many advantages to the new driver. Among the
most important is that this new V2 driver is supported by Astro-Physics.
When Ray answers a post about the driver, it isn't just because he is
such a nice guy (which he is!). He is answering as a representative of
Astro-Physics. If there is a problem, he does everything possible to
fix it.
I think they've got it!