Can you Ignore Error Alerts for Parameter inputs

I'm setting the parameter of a variable to a custom value. However, Construct 2 always gives me the alert that the syntax is wrong and won't let me go on through the dialogue boxes. Is there a way to ignore these?

I know that it will call correctly when it is run, but the editor won't let me enter it.

Please provide more details on what you're trying to do.

What's the syntax error and what's the expression you're trying to type in? (See #2)