In a worksheet, the user may assess intermediate target achievement in
cells I26:I27:I28 and final target achievement in cells I36:I37:I38 as
follows
- target on track respectively target
achievement exceeded
- target achievement unclear respectively target achievement
almost complete
- target not reachable respectively target not
achieved
For each cell the user may declare his judgement by entering an "x".
How can I manage that, similar to conditional formatting, he or she is
only allowed to enter one "x" in the respective range? Thus, if I
enter an "x" in cell I26, the other cells I27:I28 must remain blank
(and same procedure for the range I36:I38). Many thanks for any
suggestions