A tooltip like
works mostly fine
but not always
Is there a way to escape the backslashes? RegEx() seems to be unavailable in this context, so
=RegEx(source, "\n", "\\n")
will not work.
Maybe EscapeString() can be made available as an Evaluator function (in general and in this context).
=Replace(source,"\","\\") seems good as a general solution.
Ah, yes... and RegEx() is available... Makes me wonder why my attempts all failed with an error 
Might need to double the backslashes with regex.
Yes, my example from above wouldn't have worked anyway. I saw red error messages in the log and assumed that the function wasn't available when, in reality, it was probably just a typo. Embarrassing enough 