Application authors would like to control which web actions are available to consumers of a particular analysis. E.g. some don´t want tibbr and the collaboration tools to be visible, others wants to hide the filter panel or the bookmarks panel because it exposes settings that the consumer should not see or change.
Would also be nice if we could configure visibility for certain users or groups of page navigation, status bar, menu etc. (in addition to what Tobias mentioned above in his idea).