How to enable dynamic lanes

Greetings all, I am using the Play TrackInspector-VSTAndMidi Sections to assign instruments to tracks, such as VSL Synchron etc. However, the dynamics don’t work at all and I was wondering how to enable them. Given I have a complete score, I can not load the expression maps as I can not assign an expression map to the instruments separately and individually, right? I also see no dynamic lanes at all in the Track Inspector. Hence I am thankful for assistance on letting me know how to make dynamics work (in my case all instruments are currently VSL Synchron ones).

You might be reading some older documentation for Dorico 3.5 or earlier, in which case you’ll have been led down the garden path a bit concerning where the dynamics editor is found. The dynamics editor is now part of the Key Editor, which you’ll find in the lower zone. Here’s an introduction to the Key Editor:

The dynamics editor will only produce changes in the actual playback once you have appropriate expression maps assigned to each instrument: it’s the expression map that tells Dorico how the dynamics should be realised (e.g. with velocity, or with a specific MIDI controller).