mobile

Recently, I used a Moto G and a Lenovo phone (both are dual SIM phones) and I found this Menu called Sim Managemnet in Settings. There is this feature by which you can disable the GSM radio of either of the SIMs. The entire communication of the particular SIM is disabled and not just Internet(as in the case of Sparkle V-by disabling Mobile Data).
I want to know whether everyone is having the same menu or is it just me(as I haven't seen anyone else using Android One and Googling didn't help me). Is this some kind of hardware feature(my logic says not)? I've skimmed through android.developers site to find whether any function can be made use-of to disable GSM radio. But couldn't find one.
If anyone has found any solution for this problem then please respond ASAP.
I need to have this feature as I'm using my second SIM only for data and I rarely use data connection as for most of the time I will be connected to Internet over WiFi.