First of all, let me introduce myself. I am a 29 year old spanish guy who owns a 528i from 09/81. Despite I have been reading you all even before buying my machine, I did not have the enough bravery to write in here since now.
My concern is that my mirror switch does not have the button to actually choose which mirror I do want to move, if mine or the codriver's one.
Below you will see what I am referring to:

What I do find quite strange is the fact, if the right mirror is manually operated, it should have a kind of lever to move it, shouldn't it?
There's no such lever, so my assumption is that originally the car itself has both mirror electronically operated but, for whatever the reason, the previous owner changed the switch to this particular one. Am I right guys?
Also, let me point out totally off topic that I could not be more in debt with all of you. When I bought the 528i, I was completely a rookie broke student and, with so much patience and time spend in this forum, I could gather the money and the knowledge fix all the minor and not so minor issues my car had.
Once I have some time, I will introduce my machine and myself the way it should be done in this forum.
Thank you all folks!
PS, as stated above, I am from Spain, so sorry for any mistake while writing!!