memorizr - differen pics for a pair

Hi, i have bought the extension. Works fine so far. But I would like to create something and cannot find out how it could be possible. In your fruit example it woul be a pair like orange and an orangetree, cherry and a cherrytree, and so on. Is it possible to change it somewhere, if yes, in which file. I want to use it for learning. Would be grateful for a hint. Thanks Uta