In the Note Trainer mode click on the button that displays the name of the current trainer profile.

 
 
 
 
 
 
 
 
Initial, there is only the Default trainer profile in the list. The Default trainer profile can not be modified or deleted.
1. Press and hold on the trainer profile name from the list for opening the context menu of this item.
2. Select the option for editing or deleting this trainer profile.