An example method includes presenting, by a computing device, a range of available parameter values for the therapy parameter via a circular track, indicating, by the computing device, a present parameter value for the therapy parameter via the circular track, and receiving, by the computing device, via a user interface (UI), user input specifying a target parameter value for the therapy parameter, indicating, by the computing device, the target parameter value in conjunction with the present parameter value via the circular track, receiving by the computing device, via the UI, user input activating an adjustment from the present parameter value to the target parameter value, and in response to receiving the user input activating the adjustment, controlling, by the computing device, the medical device to adjust the therapy parameter value from the present parameter value to the target parameter value.