1- Using IM Console, select one of the robots you want to move.
2- Locate the "controller" probe and drag it to the Archive.
You will be prompted with dialogue box.
3- Change to "Configuration Only" (if not already checked).
Rename the package.
4- Locate the new package in the archive and "Edit"
5- Edit the robot.cfx file
Replace the contents as shown below:
Be mindful of whether the original cfg file had hubdomainname, you may also need to include that.
Save the package.
6- Drag the new package to the robot you want to move to the new domain.
7- Look for the robot on the new domain.
Please note you may need to "Remove Robot" on the robot in the original domain.