A method and control system control a process line by providing a PLC with control screens each having a unique screen number. Each HMI device is provided access to a first set of the control screens, with displayed buttons labeled with a corresponding one of the control screens. Input signals are received from a requesting HMI device that identifies the requesting HMI device and requests a control action or a monitoring action for a corresponding workstation. Additionally, the requesting HMI device is provided access to a second set of the control screens based on the received input signals, such that the HMI devices share an HMI control template that is also dynamically and individually scalable to the requesting HMI device. The process line is then controlled via the PLC in response to control signals from the HMI devices corresponding to selections from the control screens.