Notepad++: is there a way to force it to keep the autoindented-whitespace type?

I wonder if we can force notepad++ to respect the previous whitespace character when it autoindents a new line:

list[CR][LF]
····item1[CR][LF]
····item2[CR][LF]
--->|

(notepadd++ screenshot recreation showing hidden characters, because I don't have enough reputation to post images, sorry xP)

If I am indenting with tabs I want a tab when notepad++ does an autoindent.

But if I am indenting with spaces, I do want spaces.