aRemoveDuplicities command

Hey. I would like to aRemoveDuplicities command was able to handle only selected

Also, I would like this command It leaves unchanged to structure file.
That is to say, remained empty lines.

For example.

Initial

11
11
22
22
33
33

To output

11

22

33

Thanks You

Edited 2 time(s). Last edit at 2016-12-11 12:00 by Andreas.1.

There is no problem to extend functionality to selection only.
But empty lines are diplicities too and are removed.

Maybe it's possible include empty lines to list exceptions like this ^\s*$