Difference in suppress duplicates

I have the following problem:

I have my table with few columns/rows, and i have "suppress duplicates" enabled on a column (column1).
Till here, everything is working fine, but i would like to hide the visibility of another column (column2) in relation with the column1.

Here is a small pic:



Column1 has "suppress duplicates" and its working fine. I dont have duplicate values there.
But now, i would like to hide that "remove" picture, which is a link which contains the value of the column1:
"http://blabla/"+row["column1"]

Is there anyway i could do that? Show the trash-picture only when the column1-value is displayed?


My birt version: 3.7.1