NSTabView mirrors other tabs Please help!!!

[Qfanvnaa]

Ok, here's my dilemma. I have an nstabview and a plus button. The plus button adds a new tab to the nstabview. I then have that tab linked to an nsview so when I select the tab it loads the nsview. But when I click the plus button more than once I get two of the same view. How would I make it not mirror everything I do in the first tab? Please help! Thanks in advance.