The cloud monitoring mode is phased out in favor of a hybrid mode.
You can see that when you onboard a Catalyst switch that you have the option to have configuration source be cloud or device. Device means you still configure everything on the local CLI (but you can also use cloud CLI) and you still have access to all features.
However I do believe even in cloud native mode (-M) with the new Cloud CLI mode you should be able to add configuration that is not yet natively supported in dashboard. Do correct me if I'm wrong but that is the whole point of the cloud CLI to be able to push stuff that has no dashboard GUI yet.