IDD CI24 ECONO MM Penta 1.20 Galaxy II
1.2Mtr Polar MTG yes it has been on the arc for 25 years and is now fixed on 13 East using two pairs of rusty molegrips. Unlike me they never groan but always perform.
Your stb probably has the original firmware in it thus it will not have the extra facilities. If one is produced for it (which I doubt) you would have to flash your receiver with a patch to allow entry of these key codes.