I use drag script most of the time. I add an explicit slave or unslave command during the script.
I am not sure when using On-the-Fly Area for a single sequence if it automatically slaves at start.
You will have to test it.
Voyager does not have it’s own internal slave facility.
Are you using an ASCOM compatible dome ? Then you can use an ASCOM hub such as POTH or ASCOM dome to set up for slaving.
**** You will need to make sure that both the mount and dome are configured in the hub first. Test the hub’s connection and dome geometry parameters for slaving. Then disconnect and close the hub.
In Voyager’s setup choose the same ASCOM hub for both mount and dome then connect voyager.
Voyager should launch the hub and connect to both dome and mount properly.
The hub applications have a slave check box ( voyager lacks and manual command in the box you pictured )
TheSky has nice slave facility called automadome if you happen to own a Paramount / TheSky suit already. It too expensive otherwise IMO. The set up procedure is different.
Finally, I choose the same hub as the mount for PHD guiding. If you connect direct to the mount rather than the same hub, it may launch another instance.