Hi @Iplinsky ,
Aside from the documentation, which you can find in the following link, a good starting point would be to get familiar with DQL. This provides the most customization when it comes to creating these dashboards, considering you can import these data visualizations directly from the Notebook itself. There's an interactive tutorial that was recently created, I would suggest starting from there to get familiar with the functionality as you translate those skills to the newer dashboard capabilities.
We are currently working on providing a solution to share workflow ideas with new users.
In the meantime, I recommend taking a look at the Observability Clinics or other video materials - they often feature templates for dashboards and notebooks which can be downloaded from Github: