Hi John,
Well, I'm very impressed, that actually works really well. I tried adding in
to see if I could stop the 'jump' between the chart type changes but it seems to make no difference. It lloks as though it is effectively unfiltering then filtering again or something, not sure, but I guess that is an Excel thing.
I think the range defined as target ($B$41:$E$59) should remain constant, I can't see any need for it to change at the moment (though I may eat my word later)...
I'll test a little more, but this looks like a perfect solution...
Many thanks
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