we would love to be able to have an "add on" increase the processing time of the appointment. for example, we do IV therapy and have a 30 minute processing time when the IV is running in. we have an extra fluids Add on which adds 30 minutes for the IV to run in. as of now, when a client selects this it adds 30 minutes to the end of the appointment. we would love it to only add to the processing time so the staff is available for other clients.