Yes, it was possible up to v1.7.5 but after a code suggestion (that I did) it is not possible in v1.8.0. Now that I see your question and figure out the issue, I suggested a fix for that. You can see it here:
https://github.com/q2a/question2answer/pull/619/files
Hopefully, it will reach v1.8.1. You can, of course, make the change manually if you are in a hurry :)