iOS issue

Sir
Hi ,i would like to ask if possible to how can I save movie in to iPhone’s camera roll which transferred from my pc by vlc app WiFi because I completely transfer its and saved in all files of VLC app
So a second question why I never found ability to forward any movie downloading by your application and saved in VLC files to anther application like we chat ,Whatapp &line app why
I hope to find your interesting by answering
Regards

Bassimsoc about VLC for Mobile, v3.0.0