Welcome to the Dorico forum, Marc. Dorico is not a DAW so it does not have many of the features that you would take for granted in Cubase. There is no audio playback and recording, for starters. You can use all of your Cubase plug-ins in Dorico, though Dorico does not currently report the current tempo to plug-ins, which means that any plug-ins that rely on knowing the current tempo won’t work correctly. There is also at present no way to directly take projects from Dorico to Cubase and vice versa, because the two applications are for very different sets of use cases; however, you can import and export MusicXML and MIDI between them.