A method and service for enabling a smallest unit of variable data within a data space of a user application to be dynamically updated using an external source. The coupler includes a manifold having pneumatic apertures and a support having connector apertures to accommodate one or more valves. The flexible region comprises a helically cut length portion of an elongate tubular body of the inner member and a continuous solid flexible surface secured to an outer surface of the body along the helically cut length portion.