A typing support is provided as a part of a typing station including a keyboard. A barrier wall separates the first and second fluid chambers and includes a nanopore therein across which a planar lipid bilayer is formed. The mobile member translates in a direction parallel to the fixed hinge axes, and is connected to the handling arms by a mechanical transmission having a respective guide-and-slide assembly for each handling arm. When the support rods are inserted into their respective tubes, the replacement barrier mat is positioned within the frame and forms a framed well.