In Tekla Structures 2018i, the customization tools for ribbon, property pane and user-defined commands have been completely redesigned. The refreshed tools with uniform design offer simpler and smoother workflow for your customization of Tekla Structures.
Previously, all the customization tools were in the same Customize dialog box. Now each customization tool has its own editor.
In Tekla Structures 2018i, the new tools are
To open any of the editors, on the File menu, click .