[FEATURE-REQUEST] Allow `default_actions` to accept the current connection

**Describe the problem you're proposing to solve**

The `default_actions` function currently accepts only the schema. I cannot change the default actions per user for example.

**Describe the solution you'd like**

Let the `default_actions` function take the current `conn` as a parameter.

**Describe alternatives you've considered**

N/A

**Additional context**

N/A