You can add extra page elements / gadget places easily by modifying the blogger template. To do this go to Dashboard > Layout > Edit HTML. Find (Ctrl+F) showaddelement. Change showaddelement='no' to showaddelement='yes'. Change maxwidgets='1' to maxwidgets='2’ or maxwidgets='3’. Save template and now you got extra ‘Add a Gadget’ page elements.
See modified template example below.
