Currently, no there is no way to call them. We always considered the Presentation Mode more of a rough preview mode, than an actual full fledged "game simulator".
We would have to add way more features to please everyone. So because we knew we couldn't do it, we tried to focus on our main strength: Dialogue editing. And tried to stay true to that vision.
Unfortunately it is at this time not something we can easily add.
But that doesn't mean that there aren't ways to solve what you would like to do.
For example one thing that comes to my mind is using unity and our articyimporter plugin. The plugin has the
flow player which is basically a customizable presentation view.
In unity you just add a little bit of code to access your
templates and call the scripts necessary. You can see all the global variables and add even more views for debugging and balancing for example.
I know this is not a very satisfying solution, especially because of the turnaround times of exporting and importing, and it could be too much work for what you might have in mind, but it would achieve what you are looking for.
Sorry for not having a better answer, but hope you can make it work.
Best regards
Nico