How to merge details line into one cell when repeating data is sorted in a column?

[cohda07]

I want to define on a single sorted column by merging all the data that is repeating into one cell.

How should I do that?

I'm using simple report with text boxes on the details band.

[hozawa]

There's no option to merge cells but it's possible to not print repeated values by unchecking "Print Repeated Values" property.

Select the text component and in the Properties tab, there should be a "Print Repeated Values" checkbox.

[cohda07]

Any idea how could I use some design shape technics to not print the frame when it's repeted? 

I mean for something like remove the lines on the top and bottom of the frame 

and add it with "break" or something similar?