I've got my RCU file set to choose my favourite icon settings every 60secs for when I'm playing offline (because it gets reset at the start of every mission for some reason, so I just make it repeat every 60s so that by the time I need them they're already set), but unfortunately my main PC has been absolutely screwed for ages so I can't really give you 100% accurate details of how it works. As far as I'm aware you just need to add a line in your RCU file that says @file whatever.whatever, then create a text file that you save as whatever you chose to put after @file which consists of the lines of console commands that you want, but I can't remember a) how you separate the commands, probably a semi-colon or b) any other commands than the obvious mp_dotrange settings. But anyway, that's the gist of it, you can find a list of console commands
here. For you I suspect that the relevant bits will be the part about the hotkey and EXEC commands and the line "Commands can be found also in the settings.ini file in the IL2\Users folder ", which refers more specifically to commands in the sense of actual game actions. Hope that helps.