Mix fixed and non-fixed orientations in Storyboard?

I’m in the beginnings of designing a new app.

I know that I want to support all orientations, EXCEPT that for two view controllers / views in the whole app, I MUST lock it down to landscape.

In all the other views, the devices can be either port / land, however two must lock to land (up or down).

I know there is code samples floating around to programatically do this, but is this possible to specify and layout within Storyboards?

Or should I just pretend its a landscape only app, and then let auto layout fix it for the majority of view controllers where I don’t artificially lock it?

I’m also trying to use Storyboards as a UI/UX & app planning / design tool, rather than say ‘InVision’ or something else.