[Gmail-Users] Using the tab button to indent paragraphs

I was wondering why GMAIL does not allow the tab button to indent
paragraphs. GMAIL is great but how can GMAIL creators overlook such a
simple but useful feature. I personally think E-mail that is indented
is much easier to read.

I know there is a way to indent by clicking on an icon above, but it's
so much easier to not have to waste a movement with a mouse.

Is there a hack for this? If not will the creators of GMAIL come up
with a way to use this feature?