There is a need for collaboration support systems, suited to crisis management, able to sustain collaborations in ever more unstable environments. The organizations involved in a crisis response need support in limiting information overload by accessing information suited to their current needs. The collaboration support system proposed in this paper uses a Common Operational Picture (COP), supported by a Geographical Information System (GIS), that consists of information selected according to (i) the on-going collaboration phase, and (ii) the level of commitment within the collaboration of the current user. Additionally, to validate the proposed classifications, the paper demonstrates how the pre-selection can be applied to support crisis collaborations, operating under high stress and high information load.