Directly copy string filed content

[7sDream]

Currently only object/array has action to copy content.

Considering that \n and " are escaped within strings, it would be very convenient to quickly copy the content of string fields directly from the interface.

Or maybe all type of field?

[exdis]

Hey @7sDream! Thank you for the proposal. I transfered this issue to the main discoveryjs repo, so we can discuss it here.