Save the user's studies on the chart as a template: with their panes and scales when the store can capture them, else as the plain study list. Rejects when the chart has none of the user's own, rather than store an empty template.
Save the user's studies on the chart as a template: with their panes and scales when the store can capture them, else as the plain study list. Rejects when the chart has none of the user's own, rather than store an empty template.