Hi,
It's not possible to move the central point of default profiles but you can turn the profile off then create a custom profile at the exact locations you'd prefer,
then set that custom profile's "Parent_Monument" field to the name of the default profile you just disabled.
For example, you could use the chat commands to create "DomeCustom" somewhere near the Dome, then set DomeCustom's parent monument to "The Dome 0".
That way the central point for the profile is exactly where you want it but if you change map seed BotSpawn will automatically relocate the profile to keep it in the same spot, relative to the new Dome location.