deck editor question-can't see cards after 100+

[norticus]

i was trying to make a custom draft set, but after i exceeded an amount of cards in the deck builder (130 or sorts i dont remember exactly) i couldn't see the new cards i added. i couldn't see a mouse sort of thing like the attacker screen, so i'll appreciate any help. i know it adds cards because the number increases but i cant slide to those cards.. tnx anyways