Yes we can do hidden of the whole column too.
In the analysis tab , On the selected column go to edit properties
Edit properties-->Column Properties -->Column Format--> right top side we have option Hide ( Check in that , the column will get hide)
or another method in the pivot table view on the top head of the column give right click u will get the " Hide column" option to hide.
And save the report and check in dashboard
Thanks for taking the trouble to reply, but this relates solely to the 'Measure Labels', not columns.
After a bit more poking around I found a dashboard with one pivot correctly hiding the labels column and one not, after comparing the XML it seems that the visibility attribute is not always set correctly. I can only assume this is a small problem in the upgrade utility. This leaves me with a huge and very labour intensive task, I fear. It would be good to know I anyone else has encountered this though.
Just hack the Gibbson...i.e. mass search& replace inside the XML files. If you want to be really cool, do it with regex on file system level.