Default values can be set in the Project settings. These options are of course dependent on the target platform, so the options for a MongoDB project will be different from the options for PostgreSQL or MySQL projects.
How to define Default values
Project settings and Default values for MongoDB:

How to use the defined Default values?
When you create a new object in this project, the default values will be automatically used.
New collection detail:

Each of these settings is valid for the project in which you change these settings.
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