The Group command (on the Tools menu) combines Selected Lines and Shapes to create Structures. You can give the Structure a Title consisting of Manufacturer, Description and Part Number on the Group dialog. The Title will be prepopulated with the Title of the last Structure you Ungrouped.
You can include Turnouts, Sectional, Straight or Curved tracks in the selected objects which allows you to add cosmetic details to a Turnout definitions, or create a new Turnout definition.
To modify a Structure or Turnout definition, first place the object on the layout, Select and then Ungroup the object. Now the parts of the object can be edited using the Modify, Draw or other commands. Once completed, select the object parts and use the Group command to update the definition (or create a new one by changing the Title).
The Group dialog shows the Title (Manufacturer, Description and Part Number) of the new definition. The initial values are based on any selected Turnouts and Structures or on the last object Ungrouped. The dialog also contains a toggle button, Replace with new group? which is used if you want to replace the selected objects with the new definition.
The definition data will be added to the xtrkcad.cus file for later use. Please consider contributing this information for others to use.
If you modify a definition from a XTrkCad Library parameter file, the new definition will replace the existing definition on the Hot Bar, otherwise it will be added to the end of the Hot Bar. You can use the Custom Management dialog to change the Title or delete Custom definitions.