dm500 openbox clone how to use an n line

Hi, sorry for the noobish question playing with my 500 I have a spare n line and was wondering how to use it on this box for c lines I use cccam toolbox cccam config then upload but it isnt clearing any channels any help appreciated thanks dazzza

thanks but it doesn't want to work, I think I am missing something simple but cant for the life of me see the woods for the trees
its the linuxsat gemini 4.7 version
thanks dazzza

thanks it just took a while to clear