Indenting chunks of code in editor?

[Modnar]

Hi, I do most of my programming using NEdit. Can anyone tell me how one gets
around indenting whole chunks of code to keep it in line with Python's
requirements. Sometimes I find that once I've written an inner loop I need to
add an outer loop and so the whole block needs indenting, and unfortunately up
until now I have to do it manually line by line. Any suggestions will be
appreciated. Thanks.