Information might include power level, zoom, Exposer Compesation, Guide number, Autofocus Assist Illuminator On/ Off. Auxiliary light on/off. The info displayed isn’t really what you should care about. Only the higher end flashes can act as Commander units, to control the other flashes. This is critical if you are going to have a multi-flash setup. At least one of your units will end up costing you $300+. The other flashes need to be able to work on a stand wirelessly as slaves.