How about adding a Reveal (or refresh) command in more places and as a toolbar button?
Consider these examples all starting from when a document is viewed in the 3-pane view.
Say you jump by link to another document. Now you want to see where this document is in the hierarchy of Groups. A reveal or refresh would redraw the 3-pane view to show this new document as though you had navigated to it by Group and Name. The existing Reveal command (Data menu) does do this now but there is no Reveal in the contextual menu and no toolbar button.
Say you use the browse back or forward arrows to go to another document. Again, a reveal or refresh would redraw the view and locate this document in the hierarchy. The existing Reveal command (Data menu) jumps to the last document viewed unless you change focus (click) to the new document before using Reveal. Then you screw up the browse back or forward history. Again, there is no Reveal in the contextual menu and no toolbar button.
Say you use the search box to identify another document. You click on that document and you view it in the 3-pane view. Its location in the hierarchy is shown in the search results under the document’s name. But, a reveal or refresh would redraw the view, remove the entered search term, remove the list of search results, and locate this document in the standard hierarchical Group display. The existing Reveal command (contextual or Data menu) does do this now except for not removing that no-longer-meaningful search term from the search box. And, there is no toolbar button.
I think of the action more as a refresh of the 3-pane view than a reveal but that may be from Linux experience where the refreshing of views is a common occurrence. And, if you have navigated to somewhere externally by a link, then reveal is a more appropriate term for displaying the original DT document from which you had navigated from by the link. Refresh there is confusing with the browser command to refresh a page.
Call it either reveal or refresh, all three of these examples should logically work the same way — mostly by adding contextual menu commands to make them consistent. But, adding toolbar buttons would also be nice.
To go even further, why not have what would amount to an automatic refresh or “reveal” when a document is displayed in the 3-pane view — and has focus (click)? Redraw the 3-pane view automatically to show the document as though you had navigated to it by Group and Name. This automatic refresh or reveal would happen only for a document that is contained in DT, but not for displaying an external link.