[bsoriano]

Unfortunately too I don't have the ability to create those icons

Thanks!
Maybe show all letters and just skipping, in navigation, those don't have files could be an workaround for this (if the service you're using provide this).  

@edjalmo , I can show all letters (that's how I originally had it), but I don't know how to skip in navigation those that have no entries in the list.  

Regards,

Bart 

I checked Arctic: Zephyr 2 and there it use this + scroll without press enter. He probably use a different plugin for that, but maybe give you some idea.

@edjalmo, jurialmunkey has agreed to my adapting his code for Amber. I will work on this in the next couple of days.

Regards,

Bart