3 Column page layout in Social Office 3.1.0 only allows portlets to be moved in 2 columns, but not three.
Steps to reproduce :
In SO 3.1.1,
1. Create a SO site.
2. Go to Social Office Configurations, assign Admin to Social Ofice
3. Create a page and change layout to 3 column layout
4. Try to add three Asset Publisher portlet side by side. You will be able to add two portlets side by side. Next one goes below.
Results of Testing
Actual Result: One can only display portlets in 2 columns while the page layout should allow for 3 columns. Please refer to the screenshot 3_columns_doesnot_work.gif