So I was not sure what you were saying but in DCS right clicking only gives me the options: Add Combo, Clear Combo and Reset Combo to Default. I had manually bound every button in DCS for this ICP, but like I stated prior, DCS will not let me bind these 4 rotary ones. Moving them while in that box to bound them, nothing shows up. So can't manually bound them for some reason.
Someone else stated to configure them correctly in SimAppPro picking either rotary of switch or something like that. There is no option in SimAppPro like that only to change the interval.