If it is possible, Please keep the old material editor(legacy) and create the new node-base material editor based on compatibility with the old material editor.
If you still want to remove old material editor, please create default nodes templates/patterns that can quickly create 3D water nodes, clouds nodes, monitor nodes, blood/bullet decal nodes , etc.
Default nodes templates/patterns can be great for novice/beginner users and allow them to quickly connect to the two-way with LY engine, which also makes the LY engine user-friendly.
This can also be the case for tools such as particles node system, and prefabricated pattern/template like fire node particle, flame node particle, waterfall/water splash node particle, explosion node particle, etc.
Having a catalog based on searching for default node patterns can be great
Thank you so much for your great work