Workspace profile

A workspace profile is a saved arrangement of a whole terminal window: which charts are open, on which instruments and timeframes, and how the windows and panels sit. It is a level above a chart template, which stores the settings of a single chart; a profile stores the set of charts. Switching profile closes the charts that are open and opens the ones the profile names, which is a visual change and nothing more — positions, resting orders and account state belong to the server and are untouched by it. The reason to keep several is that different work wants different screens, and rebuilding a layout by hand each time invites leaving something out. The reason to be careful is that the current arrangement is generally written back to the profile in use when the terminal closes, so an unsaved experiment can quietly overwrite the layout it started from.