Upstream of the creation of IP recording channels, the "IP Stream" box must be checked in the setup of Radio-Assist in the "FeedIn" tab.
The list of existing channels is shown at the bottom of the screen.
To add a new channel, click on 
The following window opens :
Name : New channel name
NA-ER 4 Station : Workstation where the NA-ER * recorder is located (See Na-Er doc.)
Click on to create a new recorder; the window below opens :
Machine name : To declare the name of the new workstation hosting the recorder.
Nb card : Number of cards available on the workstation.
Card Number : Card number.
Channel : Channel number.
GPI Input : Incoming GPI number.
Always assign to item : Number of the item to be replaced.
At each recording, the item is the database will be replaced by the new recording.
Database tab : Database tab where the recordings of this channel will be stored.
Type of source : Audio or Video.
Recording format : mono or stereo. In mono mode, the number of recordable sources is doubled.
Then click on 
The new channel will be displayed in the list of channels along with its parameters.