[Feature Request] highlight plus CAPS LOCK = invert capitalization

I would like to have a fetature added that allows you to highlight some text that already been typed, hit CAPS LOCK key and this function woul invert the Capitalization of the hight i.e. highlight appprove hit CAPS LOCK and it becomes APPROVE, high ligh IpHONE and it becomes iPhone.

I cannot find any open enhancement request relating to this use of the CAPS LOCK key. Please file an enhancement bug and provide as much information about this new feature as possible. Don’t forget to mark your bug as an ‘enhancement’. The QA team will be happy to help you triage your feature request in the bugtracker.

Please post a link to any bugs you file in a comment below using the format “fdo#123456”.

Thanks!