Did the post you received help you with your use case? I know it was for Sense Help, not QlikView, so I wanted to be sure to see if that did help or not. If so, be sure to use the Accept as Solution button to mark the post to give credit for the help and to let other Community Members know that helped you with the use case. If you are still working on things, I think we need some further clarification, as I am a little confused about exactly what you wanted help solving, the subject says one thing, but your description does not seem to coincide very well, so just wanted to be sure what the request really was on this one. I think that will likely help you get some further posts if you need them.
I will take a stab at things, one thing might be to use a Calculated Dimension that results in your empty column with just dimension name:
To help users find verified answers, please do not forget to use the "Accept as Solution" button on any post(s) that helped you resolve your problem or question. I now work a compressed schedule, Tuesday, Wednesday and Thursday, so those will be the days I will reply to any follow-up posts.