I can connect to the Vault and see the content but when I try to load a vault library into in the library dialog using Install button, I don't see an 'install from vault' option.
How can I load vault libraries into Altium so I can use them?
Thanks
Which part of this procedure is not working for you?
http://documentation.circuitstudio.com/display/CSTU/EDesignData_Pnl-Vaults((Vaults))_CS
You would typically use the File > Vault Explorer window to find components and then add them to your schematic from there. The Vault is not an installed library and you should not try to copy vault components into your own library. It is possible but not officially supported and does require some extra work to achieve.