Insert accented letters in passwords This should be easy, but I cannot solve it by myself.

How can I insert accented letters in passwords?

When I go to System Preferences &gt; Security &amp; Privacy &gt; Change Password... and in the password field for instance I hold the letter u, it won't show the list of possible accented letters, it just repeats the u. 

If I use Alt+u to get the placeholder for ü (so that I can type u to get it with the umlaut), it won't show the "insert a letter now" yellow placeholder, instead I get a beep. The same goes for Alt+i, Alt+n, Alt+e, only beeps and no possibility to enter an accented letter.

Moreover, if I enable the "Show emoji and symbols" as in the picture below, I am able to insert symbols in the hint, but in the password it is completely prohibited. 

The same goes with "Show keyboard viewer" and try to insert with Alt+e|u|i|n to be able to finally enter euin to get the symbols éüîñ, I get a beep. The only accent that sort of works is the backtick Alt+backtick, but it inserts the backtick itself without prompting for the letter to be accented.



Input source: US English
OS X version: El Capitan 10.11.3 (15D21)

Is there a way?

PS. By the way, when changing passwords, can I tell my Mac to stop asking this? "Would you like to change the password for “username”, or begin using your iCloud password to log in and unlock this Mac?"
Entering a password with a diacritic works as expected. You have to use the proper keys though:

To enter an umlaut you have to use altU
To enter an accent grave you have to use alt`
To enter an accent acute you have to use altE
To enter an accent circumflex you have to use altI
To enter a tilde you have to use altN  

The above are all dead keys and have to be followed by a second key. If you enter space the diacritic itself is the "entered sign". Entering a dead key in a password field you neither get the typical yellow/orange dead key indicator nor a bullet - you get a beep only!

The back tick itself is no accent (dead key) but simply a back tick.

E.g. to enter an ü using an US English input source and an Apple keyboard with a (physical) US English layout you first have to hit altU and then U again.

In my virtual machine I get an alert sound but no bullet after entering the first key combination (the dead key ¨) and then after entering the second (single) U a new bullet. The resulting letter is the (lower caps) ü.



BTW the ¨ is no accent. Like accents it's a diacritic though.