Surgical videos serve various purposes, including training and dissemination of science. However, their production remains limited given the time needed and the limited support from commercial video editing tools. This work explores additive summarization, a novel approach to surgical video editing based on concatenating tagged segments, rather than subtracting unimportant sequences. We conducted three workshops where pairs of surgeons (expert–novice) summarized surgical videos using a custom-built prototype. The results shows that tags support additive summarization, ease the creation of multiple summaries, and support collaborative work. Moreover, we observe that the expertise of residents impacts the division of work. These results show the potential of the additive approach, and open research avenues for future work studying its effectiveness.