Where do I find what to put in the "TINYMCE_DEFAULT_CONFIG" setting?

In the documentation it states that you can go to the website to set these.

The problem is, it's not clear in both documentations where / what specifically to change.

Can this please be made obvious in the documentation where to get these commands, or even a list of what we can add there?

Review the documentation sections that describe TINYMCE_DEFAULT_CONFIG and the referenced website instructions. Clarify where users can find configuration options, or provide a list of supported additions; done means the documentation makes the available values and how to obtain them obvious.

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