Hi Gary. How about this, the idea works.
Round - Melrose
2 weeks - 1 & 2 Melrose
4 weeks - 3 & 4 Melrose
Add round - Melrose, Nos 1 & 2 Melrose, freq 4 weeks, due date 1/6/06 (every 2 weeks sorted)
Add round - Melrose, Nos 1,2,3 & 4 Melrose, freq 4 weeks, due date 15/6/06.
They are still separate rounds but it covers the 2 & 4 week cleans.
Macc