Customize zsh's prompt when displaying previous command exit code

Question

Zsh includes the ability to display the return code/exit code of the previous command in the prompt by using the %? escape sequence.

However I would like to

Answer 1

Alternatively, you can:

setopt PRINT_EXIT_VALUE

to always print a newline showing previous return value.

I don't prefer this for ordinary use, but it is often good for debugging shell scripts.