Hi there,

I hope you are having an awesome day and thanks for contacting us regarding your query.

Salient VC comes with the theme and you should see a notice that looks like this:

But it should be about you needing to install the plugin. 

You should also be able to go into Plugins and install the plugin from a list of recommended plugins.

Please let me know if there are any more questions that I may answer for you :)

Cheers!