For users that have access to the Pro Tier, you can build your own custom ranges. The Range Builder can be accessed from the main menu.
Start building your own range by adding and setting up your targets.
Once you have set up the targets, you will need to select the Game Mode. This allows you to define the object, which could be either end when all targets have been hit, on a time limit, or when you have used your allocated ammunition. If you level both the Time and Shot Allocated as unlimited, then ensure you include a ‘Stopper’ Target.