An optional flag that when true will stop the Terminal from taking focus.
A view column in which the terminal should be shown in the editor area.
Use active to open in the active editor group, other values are
adjusted to be Min(column, columnCount + 1), the
active-column is not adjusted. Use
ViewColumn.Beside to open the editor to the side of the currently active one.
Assumes a TerminalLocation of editor and allows specifying a ViewColumn and preserveFocus property