Difficult Excel Problem

Since your help was so useful earlier, bpeltzer, I was wondering if you can point me in the right direction a little further.

I thought it would be a good idea to merge the 7 cells in each weekly box, and have each group of merged cells moving up the table with their dates. I can not see a merge option in the conditional formatting dialogue.

Is it possible to do this? If so, how?

I enclose an updated screenshot.

thanks

Spike