How to create page with properties? Page templates?

[onkeltem]

Thank you very much! Finally it’s getting more clear

Do you know maybe how to trigger Datomic code highlighting?
Please see:

What is the key for the Datomic language in CodeMirror blocks?

I learn Datomic and I wish my note snippets to be colored in ```-blocks. I assume that Datomic is not included in CodeMirror’s standard set of languages. However, is it possible that the Logseq team has integrated Datomic support into Logseq’s configuration of CodeMirror? If yes, what is the ```-key for such blocks?