Ditto above...once again, the functionality of the OPTION button tends to be forgotten. (not a knock, just the coincidence of the OPTION button's usage being overlooked or conceptualized just like in another thread about creating a favorite artist list in the MEDIA area of iDrive)
If you need to change something or need more selections...the OPTION button usually is what owners need to select when using iDrive.
Another example in this case would be for a 2nd owner or if the 1st owner moves. Pulling up HOME and needing to change the information...due to either of the aforementioned...the OPTION button opens up the ability to edit/make changes/etc.