dont really understand the question. so you mean what do they do in the AV Wizard or what do they do in Orbiter? If the latter - F6/7/8 are the Media/Menu/Env controls.... it does look like the others were intended to do something in times gone by, as they react and in different ways, but I don't think they are significant any more.... F6/7/8 are the primary ones. In AV Wizard they control the output connector and resolution, you can find all that info by searching the wiki for the AV Wizard