I'm quite sure that there are more Keys which activates the Hub - And also that your Keys (INet TV - Media Player - Content) are "somewhere"...
For Media Player you could give KEY_AV2 a try - This is "normally" AllShare Play...
If those both are correct you are fine: One SmartHub and two reassigned.
During my tests I missed to list all functions I found. Sometime I left especially those out, which seams to be clear already or dubble... What a pitty

You can try it for yourself with ruSamsungTVCommunicator (read some post before) - costs 1-2 Hours to do the full list...
