increase-left-margin

increase-left-margin is an interactive compiled Lisp function in `indent.el'.

It is bound to <C-down-mouse-2> <in> <increase-left-margin>, <menu-bar> <edit> <props> <in> <increase-left-margin>.

(increase-left-margin FROM TO INC)

Increase or decrease the left-margin of the region.
With no prefix argument, this adds `standard-indent' of indentation.
A prefix arg (optional third arg INC noninteractively) specifies the amount
to change the margin by, in characters.
If `auto-fill-mode' is active, re-fill the region to fit the new margin.