eurovox maxv codes

Hi everyone new here so here goes
have been putting the new codes in for eurovox maxv no probs showed 1 of my mates and instead of going to the second line in nagravision (ntl) and put new codes in he put them in the first line, this has now cleared all the channals that were shown on that page, when i ok into the page to insert codes everything was 00 changed the provider and key and inserted the codes for line 1 (00) but i cannot go down to line 2 (01) to enter the next codes any ideas please thanks