"Home key" (⇧⌘←) should snap to indentation level, then actual column zero.

Lots of synonyms for this request, so apologies if I'm double-posting.  When pressing home (⌘←) with or without ⇧ pressed to make a selection, the cursor should first jump to just before the first non-whitespace character, then on a second press jump to column zero.  A checkbox to configure this behaviour would be good, possibly mapping it to a content type.  (Which would then make more sense as a checkable menu item.)