how to select particular field on choice from the table,see the question for detail

[#1]

I have this table

         col1     col2    col3

A      a1        b1        c1

B      a2        b2        c2

C      a3        b3        c3 

I want this 

        c2       c3

b1     _         _

b3     _        _       

I know dragging the coloumn in vertical will do so but how will i get selected choice of b1,b3  from b1,b2,b3   and c2,c3 from c1,c2,c3

help me out

[Gysbert_Wassenaar]

Add listboxes for col2 and col3 and select the values you want. Or use calculated dimensions. Like =if(match(col2, 'b1','b3'),col2)