Behavior about the NVR and Annke Vision

Hi :)  

A company got the FDH600 product.
N46PCK+I51DX*12+12TB

They asked me to install the NVR and plug the POE cameras in their network.
It seems working but I have few questions/doubts.

Is there a way to login in the NVR by LAN and WLAN?
Where the NVR is, there is no screen. There is a HDMI plug between the nvr and another room but without mouse I can't control anything of course. (or I need a long wire mouse between the nvr and the room from where I work)
So I was thinking of getting on the NVR interface as we could do to get the routeur/modem interface, by entering its local IP.
On a internet browser, I typed its IP (192.168 ... ) and yes it showed ANNKE NVR interface but not very functionnal, it recognizes the plugged cameras, but impossible to view them (error) , so it's not possible to set each camera (about the sensibility, the zone, the alarms ...)  

So I guess it's not a good idea to access the NVR by IP local  in the browser.

Other solution, by ANNKE VISION.
but I am confused between ANNKE VISION PC and ANNKE VISION Android. 
It seems we have more "power" to set with the mobile version.
If i change something Vision PC or desktop, it doesnt change anything.
But on the mobile version, I can see it changes settings.
It seems the desktop version is guarding vision with a part of Ankee vision ?! 
(note that I use annke version PC from a different network than where the NVR is)

It is also difficult to find things for french language ...