Here is an quick example I threw together to show a possible workaround if you really want the blur action before Klaus implements a filter.
Click the hotspot to open the textfield and click the textfield to close it.
Blurred pano with textfield
It is based on using a new scene but only showing the preview while displaying the textfield. Let me know how it loads for you. I have a fast connection and sometimes wonder how the rest of the world sees my panos.