PBIRS Desktop Analytics Pane Limits

In the Analytics Pane, when creating a forecast, I see there is no options (.. I think) for setting data limits on the forecast. For instance, I have a line graph with a survival rate and a forecast. The forecast takes the survival rate above 100% which is not possible, and could also potentially predict a survival rate under 0% which is also not possible. Is there any trick or option to set limits on these forecasts?