Can I manipulate chart to adjust values in a table?

[lithium_s]

Hi, I have plotted a circle in a scatter graph and added the points A, B, C and D. I can plot these points at the angle specified in the table.

I was wondering if this could work the other way around? As in, I physically move the plotted point to the desired point on the circle and this updates the angle figure in the table?

I'm almost certain I have seen this done in excel, but i cannot find anything like it.

Thanks

 

[lithium_s]

I have found that this used to be a feature in excel called MPOC. I can remember using it. Shame it's no longer there.