Hello @Felix_Turrion,
As a creator of the Expression Maps set of Cremona Quartet for Dorico and VE Pro, I would recommend you to use VE Pro as host. This will make the things much easier, especially if you are working with large templates.
If you don’t want, still you could adapt the Expression Maps created by me in order to work with Stradivari hosted directly in Dorico:
For me it works fine, only the glissando is a bit problematic, but this is because of Dorico.
This template uses C3 as middle C!
Greetings and success! 
Thurisaz