A conferencing assembly for sharing content from source devices includes a common display screen, a switcher controlling input to the screen, and a table assembly with a tabletop opening. A control cable assembly has a first end linked to the switcher, a second ends having a plug connectable to a source device communication port, and a first control cable located therebetween. A take up assembly including a first weight is disposed below the opening. The control cable assembly links to the first weight to apply a force tending to pull the second end of the control cable assembly toward the opening. A first user interface including a control button useable to send a signal to the switcher causing it to provide first content from a source device connected to the control cable assembly to the screen is integrated into the table assembly and is associated with the control cable assembly.