How will you make an Action as reusable?

How will you make an Action as reusable?

reusable action—an action that can be called multiple times by the test with which it stored (the local test) as well as by other tests.

external action—a reusable action stored with another test. External actions are read-only in the calling test. They can be modified only in the test with which they are stored.

By default, new actions are non-reusable. You can mark each action you create in a test as reusable or non-reusable. Only reusable actions can be called multiple times from the current test or from another test.