We have the 2011 Outback 329FBH that has the master in the back. Most of the time we close the door; 100% if traveling. I have not looked for the manual operation, however, I will be "shocked" if it's not accessible from outside. With the door open, it takes every "inch" to put that slide room in.
Our door is 80% tinted; design; non see through glass. I close ALL doors when moving. Those hinges and frames do not appear "home" quality.
Even though we are on a flat site while in the GA mountain home base; I run the slides in every few weeks in the summer and every trip in the fall and winter.
Before our trip as snowbirds this winter to AZ from GA, I'll be locating ALL manual operation options B4 we hit the road.
That's my 2 cents....choices; choices; choices