Can I have another 2 groups in a group in crystal report?

Question

I have a Stored Proc that executes and outputs like this,

Plant1     Top1       12
Plant1     Bottom1    12
Plant1     Top2       14
Plant1     Bottom12   14
Plant2     Top1       34
Plant2     Bottom1    34
Plant2     Top2       18
Plant2     Bottom12   18

and I want it to be displayed like this in the Crystal Report.

Plant1
   Top
     Top1        12
     Top2        14
   Bottom
      Bottom1    12
      Bottom1    14

Plant2
   Top
     Top1        34
     Top2        18
   Bottom
      Bottom1    34
      Bottom1    18

I am thinking of grouping it by packing plant and then group it again to achieve this kind of output. Somebody there who can help me, PLease.

By the way, I am using Crystal Report 9.

Answer 1

1) Create two groups.
2) Group one is based on the Plant1, Plant2, Plant3 etc
3) Create a formula filed, that checks your second field and output either Top, Bottom.
4) Now, Group 2 is based on your Formula (Bottom, Top)

Order:
Group 1 => Display Plant Stuff (In Group Header)
Group 2 => Display Location stuff (In Group Header)
Detail => Display the records