In an existing worksheet I have cells hemmed in, not able to add additional
rows or columns. I need 4 more cells in the column but do not have room to
add them.
Is there a way to click on a single cell that pops-up a mini-column of 4
cells? I would want numbers inserted in the pop-cells to be summed into the
original cell.
An example would be if I clicked on B2, a mini-column with four cells would
pop-up. When I add numbers to the pop-up mini-column, those numbers would
sum in B2.

Regards,
Gary