Feature request: Allow the preview (…) to be configurable

The array display could be enhanced by allowing the user to configure which properties (and how) should be shown for collapsed objects.

For example, if an object contains, among others, an id and a message, the user could configure:

id, message(10)

This would then display:

\> [0]: { id: 2545, message: "abcdefghij…" }
\> [1]: { id: 4569, message: "xyz123" }

where message shows at most the first 10 characters.

An additional option could define whether labels should be shown. Without them, an even more compact display would be possible:

\> [0]: { 2545, "abcdefghij…" }
\> [1]: { 4569, "xyz123" }