The functions specific to ABTestService claim that they can be used in the command bar, however attempting to use them there will throw a permission error(lacking 5).
ABTestService
ABTestService:ClearVariations()
ABTestService:GetVariant()
ABTestService:InitializeForUserId()
ABTestService:WaitUntilBrowserTrackerABTestsInitialized()
ABTestService:WaitUntilUserABTestsInitialized()