If you do not find a suitable leader line arrow in the Arrow list in the Mark Properties dialog box, you can add an arrow of your own.

1. On the File menu, click Editors > Symbol editor to open the Symbol Editor.
2. Open the arrow.sym file located in common environment or in your environment under symbols folder.
3. Click an empty symbol slot and sketch your symbol with drawing tools.

   You can also import AutoCAD or MicroStation files through File > Import .

4. When the symbol is completed, point the symbol slot to check the number of the new symbol at the bottom of the window.

   

5. Save the arrow.sym file by clicking File > Save .
6. Click File > Exit to close the Symbol Editor.
7. Open the arrow.txt file located in the same symbols folder as the arrow.sym file.

   The file contains a list of symbol numbers.

8. Add the number of your symbol preceded by zero (0) in the correct position and separate it with a comma:

   016,017,018,019,020,021, 022 ,023,024,032,048,049,101,102,110,200

9. Click File > Save to save your change.
10. Add a bitmap of the created arrow in the ..\ProgramData\Tekla Structures\<version>\Bitmaps folder on your computer.

    Use the following format in the file name: dr_dialog_arrow_type_022.bmp.

11. Double-click a mark in a drawing to open the Mark Properties dialog box.
12. Open the Arrow list, and you should see that the new arrow symbol is now available for use.