Option to change behavior of smart-tab inside comments

[TUSF]

Currently, if I have something like so:

// TODO:    Some aligned todo comment.
//<cursor>

And decide to use tab to indent the line inside the comment, the <cursor> ends up jumping to end of the file (or the next node).

I think there should be an option for smart-tab to treat the inside of a comment the same way it treats whitespace, and so in the above case, it inserts the tab/space characters accordingly.

[masriomarm]

I suggest to swap smart-tab keybinding
So, s-tab should trigger smart-tab and tab is just tab

So, those who want to trigger smart-tab press the extra binding.