A diagnostic tool includes a processor, display, and memory storing instructions to perform scan tool functions (STF) including transmitting a message to a vehicle. The STF include first and second STF for first and second systems of the vehicle. Additional stored instructions are executable to display: a first user-interface screen (UIS) including a first user-selectable control (USC) for a first scanner job performable on the vehicle, and a second UIS in response to selection of the USC of the first UIS. The second UIS includes a first USC including an indicator of the first STF, and a second USC including an indicator of the second STF. In response to a selection of the first USC, a first message addressed to a component of the first system is transmitted. In response to a selection of the second USC, a second message addressed to a component of the second system is transmitted.