There is a list of items in cell A1, such as
A and B
I would like to create a macro shortcut to change the value of cell A1, such
as
if I click Ctrl+Shift+A, then A will be selected in cell A1,
if I click Ctrl+Shift+B, then B will be selected in cell A1,

Does anyone have any suggestions on how to do it?
Thanks in advance for any suggestions
Eric