A system comprising a switching device linked to a common display screen and including a wireless receiver configured to receive content, the switching device configured to use the received content to drive the common display screen and a plurality of interface devices, each interface device including an interface housing, an interface device processor, a control button mounted within the housing and a plug linked to the housing via a cable, the plug receivable within a connection port of a computing device, a first interface device including a first device processor, a first plug and a first control button, the first processor configured to perform the steps of, with the first plug received in the connection port of the first computing device and first content presented on the first display screen while other content is presented on the common display screen, detecting selection of the first control button and, upon detecting selection of the first control button, causing a wireless transmission to the switching device, upon receiving the wireless transmission, the switching device presenting the content from the first computing device display screen on the common display screen.