I was frustrated with this exact issue today, and I was going about the selection of data I wanted to group the wrong way (though I thought it should work).
I am mulit-selecting bars from my graph and I want to group them together, Tableau will not allow me to perform a Group By or show the paperclip, what gives?
Perform the multi-select using the Column or Row Label, not the bar itself. See the pic below.
Hope this Helps
The reason why this happens is that Tableau groups members of dimensions, which are what is (usually) displayed in the headers. Selecting what's displayed in the axes selects data.
Much appreciated, but still not working.
I'm starting to think that maybe because I'm connecting to a cube, instead of a flat file, many, many capabilities disappear... ?
Dave, you are correct in your assumption in some limited functionality when hooking Tableau directly to an OLAP/Cube source. Please refer to the following Knowledge Base article.