Please read!

The Cubase plugin was designed to simplify Stream Deck configuration by reading Cubase configuration files and pre-populating the plugin with key commands and Generic Remote configurations made in Cubase. However, due to changes in Cubase made and announced by Steinberg, the plugin will eventually stop working.

Steinberg has announced that the Generic Remote device in Cubase will be removed in a future, unspecified Cubase version, and when that happens, the Midi part of the plugin will stop working.

Steinberg has changed how key commands are saved to the configuration file (and hence available to the plugin) in Cubase 13. When key commands are changed, the configuration file is not updated until Cubase is restarted. This change by Steinberg means that whenever you make a key command change in Cubase, you need to restart Cubase in order to have that change available in the Cubase plugin.

Using the Cubase plugin's key command feature will still be possible, but I believe the initial goal of simplifying things is no longer fulfilled. Sending key commands using the Stream Deck Hot-key plugin is easier, removing the need for a Cubase restart after key command changes.

Since the original design goals are no longer valid and the Midi part of the Cubase plugin will eventually stop working, the plugin will not be further developed or maintained.

Of course, you'll have to decide for yourself whether you want to use the Midi part of the Cubase plugin for the remaining time before Steinberg removes the Generic Remote. The same goes for the key command part, which still works but has become more cumbersome due to the Cubase restart requirement imposed by Steinberg's changes.

My recommendation, though, is to consider a move to the Midi plugin instead. The Midi plugin has far more features than the Cubase plugin, and it is future-proof, maintained and further developed.