>Hi,
>
>If I want to move an object (like a label or a textbox) on a report by so many points it is easy. Just select the object and press arrow up or down so many times.
>
>But what if I want to increase the height of a section like Group Header. I can click on the "ruler" (I don't really know what to call this thingy that separates Detail and Group Header) but how do I move it down so many points? TIA for any suggestions.

You can't do this by arrows :-)
But you could double click on the band separator (I don't know if this is the right name :-) and set its Height in Properties window.