In this paper we show how teachers can improve collaborative learning by designing and implementing macro scripts and by regulating script sessions using enhanced wikis, called WikiPlus. To achieve optimal collaborative learning it is important to have a well designed script (preparation phase). It is also very important to being able to regulate learners’ activities, because some activities can not be predicted in complex pedagogical scenarios as collaborative learning (regulation phase). WikiPlus helps enhancing the collaboration process by enabling the teacher to adapt the script whenever non predicted learner’s activities happen. A prototype has been implemented, the impact of different regulation mechanisms on collaboration is discussed and wishes for macro script authoring tools of the future are formulated.