Plone: Show or hide portlets for a Page Template
Small tip from plone Users List
Can I add a left/right_slot property only for a Page Template (not for its folder)?
Martin Aspeli answered:
Yes, but not through the ZMI. You'll have to customise/edit the page template and add some macro overrides. See PloneHelpCenter SVN
where we hide the right slot. Note that this replaces the entire slot. You'll have to call the portlet macros directly
metal:use-macro="here/portlet_foo/macros/portlet"to get portlets in there.