Apparatus and method for managing open windows in a graphical display for a representation of a process system

An apparatus comprising:

• at least one processing device configured to generate a graphical display having a plurality of windows, each window corresponding to a representation of at least a portion of an industrial process system;
• wherein the at least one processing device is further configured to:
• responsive to a first window being in an active state, subscribe to first operational data associated with the process system;
• and
• responsive to a second window being in an inactive state, unsubscribe from second operational data associated with the process system.

A non-transitory computer readable storage medium comprising instructions that, when executed by at least one processing device, cause the at least one processing device to:

• generate a graphical display having a plurality of windows, each window corresponding to a representation of at least a portion of an industrial process system;
• responsive to a first window being in an active state, subscribing to first operational data associated with the process system;
• and
• responsive to a second window being in an inactive state, unsubscribing from second operational data associated with the process system.