I think it does give you the option to browse, or otherwise I'm understanding you wrong;)
And no Macrium doesn't have an option to schedule it, but you can create an xml file with the settings how you want your drive to be backed up, so I ake it you can create a task in the taskscheduler and have it start automatically that way.
And no, it doesn't do differential backups, only full image. But it is very fast. My 360GB HDD wih 25GB of data on it is backed up in 20 minutes on my external USB drive and in a little over 12 minutes on my second HDD.
And I even have compression set to high (to save diskspace, because I create an image at least once a week, sometimes even daily), which normally slows the backup process down.
For comparison: I used to work with DriveImage XML which took about 2,5 hours to do the same and the images would take up a lot more space.