I added the 'Select in Model Browser' command in changeset 1415, but I haven't included this in a public drop yet. It looks like it's about time to get a new public release out (the code for this was added on October 23). This will let you jump to existing items in the model browser.
I'm not planning on automatically synchronizing selection because the three NORMA selection containers (diagram windows, Diagram Spy, Model Browser) all maintain independent selection states by design. This lets you do investigative jumps around the model without changing your primary selection. For example, you can select a column in the model browser or relational view then use the verbalization browser hyperlinks to jump around the model with the Diagram Spy window--all without losing your primary selection.
Also, note that you can drag existing shapes to a new diagram from either the diagram spy window or a second document window. To get a second window, activate a diagram and choose Window/New Window from the main menu bar, then right click the new window tab and choose 'New Horizonal Tab Group'. You'll find more detail on this in the readme, which has a section dedicated to window management. With two windows open you can copy shapes directly from one diagram to the other.