Yes, you can control and see de-warped images (Single PTZ/Quad PTZ mode) on WJ-NV300.
After registration for 360 degree camera extensive option, you can see it by single PTZ / Quad PTZ.
Note: The registration key is NOT required for De-warping function in the WJ-NV300 firmware Version 1.21 or later.
Please refer to the following document.
http://ssbu-t.psn-web.net/Products/NWDR/WJ-NV300/Manual/PGQQ1113XAD1_WJ-NV300_ADD_en.pdf