Group/ungroup context menu and mini toolbars in Object Manager.

Cases supported:

• Ctrl+select multiple group nodes E.g. g1 and g3 to group together as a new group

• Ctrl+select group node(s) and single plot(s) E.g. g1 and a single plot to group together.

• Ctrl+select group node(s) and member(s) of another group e.g. g1 and e.g. D from g2 to group together.

• Ctrl+select members in different group nodes e.g. B from g1 and D from g2 to make a new group

• Shift+select adjacent plots to group together.

Group when Drag and Drop Plot checkbox is added and checked by default on Graph tab of Preferences: Options dialog. Corresponding system variable is @DDG.

Rules:

• If there is a single plot in existing graph, drag and drop more column(s), group them together.

• If there is a group of plots in existing graph, drag and drop more column(s), group them together.

• If there are multiple groups of plots or a mixture of single and grouped plots in existing graph, then still use old mechanism: If drag a single column, add as a single plot, if drag multiple column(s), add as a new group.