Is it possible to add some configuration parameter to ignore '_definst_' at the end of app?

I`d like to have possibility to watch stream via two URL (with '_definst_' and without) after setting this parameter to True.

nginx-rtmp added support for _definst_:
http://nginx-rtmp.blogspot.com/2013/09/support-for-definst-in-nginx-rtmp-module.html