Initial Develoment - Stale Tags....disable?

During initial project development we might not have a PLC to connect to right away but we want to proceed with initial development of our Ignition project. Is there a way to disable tags so that don’t show as stale in the designer?

For the designer you can go to View -> Disable Overlays in the designer.

For the client:
You could call this in a client startup script to disable the overlay system:


If this doesn’t help then can you explain further what is meant by disable tags?