When you run Phoebus, you may open a tab with the “PV Tree”, enter a PV name, move the window around etc.
When you exit Phoebus, the current location of windows, tabs, and for example the PV name of an active “PV Tree” are stored.
When you later restart Phoebus, it restores the windows with their saved location and content.
The state is persisted in a
located in the same directory as the user preferences.
To change the default from
.phoebus/memento in your home directory
to a different location, see Preference Settings Developer Notes.
To always start Phoebus with a known window layout,
memento from a desired layout,
and then place that saved file in the user preferences directory
before starting a new instance of Phoebus.