Decision Reusing Approach for Model Transformations (DReAMT) is a lightweight approach for developing interactive model transformations. The approach consists of an iterative model transformation development process and the use of decision modeling. There is also a proof-of-concept tool set to support the approach. In this technical report we describe two studies where the DReAMT approach and tool were used. In the first study we developed a model transformation to be used as a component in a process modeling tool. In the second study we began to develop a model transformation to support the creation of model checking rules for a flexible modeling tool. The first study was carried out with Solita Oy and the second with Trinity research team from Tampere University of Technology. Evaluation of the studies shows that (i) the DReAMT approach can be used to develop model transformations; (ii) interactive model transformations are flexible; (iii) decision modeling makes automatic decision reuse possible; and (iv) the DReAMT tool can be used by people other than its author.