Adding Annotation via a Backing Sheet

When you create each SYTM, you define its origin with respect to its component outlines. It is helpful if users can see where this origin is, but you may not want to make an origin marker part of the selectable symbol instance. Similarly, you may wish to add a descriptive name to the SYTM, as displayed on the SYLB sheet, in such a way that the name is not selected for display on the drawing sheet. The solution is to position the origin marker and descriptive name on a backing sheet that is displayed with, but does not form part of, the SYLB sheet. To do so, proceed as follows:

1. Examine the displayed SYLB sheet and make a note of the coordinates of all locations at which you wish to position supplementary details. (You may be able to use the grid as a measuring scale if you have chosen a convenient spacing and have positioned SYTM components at grid intersection points.)

2. Change to Sheet Library Administration mode (see Sheet Library Administration).

3. Create a backing sheet (BACK) with the same dimensions as the SYLB sheet and display it in a 2D View.

4. For each required group of annotations on the SYLB, create a NOTE and position it at the appropriate point on the BACK (using the notes which you made in Step 1 as a reminder); or create all of the annotations within a single NOTE if you prefer.

5. Change back to Symbol Library Administration mode.

6. Select Modify > Symbol Library > Definition and set the Backing Sheet Reference option to the name of the corresponding BACK that you have just created.

   Now, when the SYLB is displayed, the annotation for each SYTM will be shown for the user’s guidance but will not be selected for adding to a drawing.