Thank you - pressing F2 solves this problem.

"Graeme" wrote:

I have a few Defined Names in a file, and need to edit the formula in the
Refers to box. However, the formulae is too long for all of it to be visible
in the box. And when I try and use the arrows on my keyboard, it starts to
add unwanted cell references to the formula. Is there a way of widening the
size of the Refers to box or maybe just an easier way to navigate to the end
of the formula? Thanks.