Yes! If you need to open Steam titles via SteamVR simply close SpringboardVR from the system tray.
First, click on the system tray (the small up arrow) then right-click on the SpringboardVR icon. Select Quit and you will be able to open content via SteamVR without the SpringboardVR launcher reopening.
There is no system for launching SpringboardVR one-click install titles from outside of SpringboardVR. Those titles are installed directly on the PC and must be launched via the Launcher.