In the literature on action control, it is assumed that all stimulus features that occur in an action episode are integrated together with the response features into an event file. Any ensuing repetition of a feature stored in this event file leads to the retrieval of the entire event file, causing stimulus-response (S-R) binding effects because of the relation between repeated and changed features. However, the retrieval depends on the extent to which a particular feature is actually repeated and thus touches the question of what constitutes a feature. Since not only perceptual but also conceptual features are assumed to be bound, the boundaries between feature representations might not only be fluid but also modulable. In this study, we evaluated whether a direct manipulation of feature boundaries is possible. In three experiments (cumulative