Please note that BahamutoD is no longer supporting BDArmory or his other Mods. The BDA Team has taken over support. Forum Link is here
To access it, click on the new "VS" bun the top right of the weapon manager window.
The button only show up if it is installed. Since BDAc 0.3.0 the vessel switcher functionality is integrated, no separate mod/download is required!
You can click on the names to instantly switch between them, or you can toggle their Guard modes, AI Pilots, or teams by clicking on G, P, or T respectively.