[Xastir] Outputting "mobile station" locally

[WE0Z]

I used APRS+SA until Brent decided to no longer support it. One of the 
useful features in was the ability to set set a callsign in "Lists" and 
no matter where this station would be it would,if connected to the 
Internet and running in server mode, transmit out of my RF locally 
without regard to what they distance filter was set to. And in "History" 
I could find him instantly if he had been seen by an I-gate station 
where he was located near at the time.

I have not been able to figure this out in Xastir. I must set in the 
Internet settings a filter of at least 2500 miles in order to locate him 
causing my computer to listen to the tier2 servers for evrything in this 
2500 radius. How can I accomplish this with distance setting smaller say 
100 miles?

Bob WE0Z
Kansas City