Editing HTML with embedded template languages

I’d like to use Pinegrow to edit HTML files that are templates for HTML emails within another system.
So I have wrappers and templated language partials using template tags similar to Ember and other template languages. i.e.

<a href="http://link">{{$data->street address}}</a>
{{if this }} Some text here {{endif}}

Is there a way to hide this code in the Pinegrow editor and preview? I’ve tried using Page > Manage Libraries and Plugins > Server-side scripts. However template tags are not recognized and there seems to be no way to manage what tags or code is considered server-script language.