undo tab

[Tom]

Hi,

as we all know we need tabs if we use for, if ... commands. Sometimes I 
find an easier way to do something and I can get rid of one or more for, 
if ... loops. Unfortunately I couldn't find a convenient way to get rid 
of the now unnecessary tabs. I am looking for something as convenient as 
inserting tabs (mark everything and push the tab key). I tried shift+tab 
and all other possible variations with alt/shift/ctrl. :-)

Thanks for your help.
Tom