The current position of the video record button on the Sony A7s is in a counter intuitive position and hinders the use of this feature. Being able to move this button would also make the camera more ergonomically friendly for those of use moving over from filming video on the Canon 5D mk3 platform. 

The second request of being able to map the APS-C function to a button would increase a shooters speed in the field, where being able to push in on action in an instant would be highly desirable and give the camera much more functionality.