A video source control assembly for use with at least a first display screen and a plurality of video source devices, the control assembly including a deck member forming a top surface and at least one cable passing opening, a switching device, a plurality of control cables, each control cable including first and second ends, each first end linkable to at least one source device and the second end linked to the switching device to provide video content thereto and a separate housing mounted to an intermediate portion of each of the control cables so that flexible portions of the associated control cable extend from the housing to each of the first and second ends, a separate selection button mounted in each of the housings that provides a control signal to the switching device causing the switching device to modify the content presented on the display screen, wherein, the portion of each cable between the housing and the second end passes through the cable passing opening and the housing has dimensions such that the housing is blocked from passing through the cable passing opening.