I use boundaries on my Viper 4 across all my paddocks and if done properly works well, if you do an incorrect one simply delete and do it again next time.
To start with you need to have the mapping widget on your work screen and access through that. Remember to save with an appropriate name. Really helps to read the manual as you do it here.
Once you have succesfully mapped your fields click the screen icon at the bottom of your work screen, select the next screen left and there you can click on the picture of your paddock to get details of area, altitude, coverage etc.
Next time you enter the paddock remember to select that boundary to start with.