Hi Abhilash,
I have created the formula as you suggested but I am having difficulty in positioning the new group above the existing group header.
How can I specify where to insert the new group? By default, the new group header appears 'Under' the existing group header and I cant see where to move it so that it is 'above' the existing group header as you suggested.
Apologies if this has a simple answer (and I'm pretty sure it will have) but I am a newbie.
Thanks,
John