To set record, you need to install a hard drive to the NVR. When a hard drive is installed, the system will record in 24 hours mode automatically as default setting.
You can set record in this way:
go to system setup - record setup - record plan and set time for your recording:
You can also set motion detection recording: click motion---choose time clips---apply---ok
You can watch motion detection recording by click on Video Playback
click on Motion to get the motion detection recordings.