How to Create a Tab Canvas in the Layout Editor:
1. In the Object Navigator, double-click on the object icon for the content canvas on that you need to create a tab canvas.
The Layout Editor is displayed.
2. Click on the Tab Canvas tool in the toolbar.
3. Click on the drag the mouse in the canvas where you need to position the tab canvas.
The Form Builder creates a tab canvas along with two tab pages by default.
4. Open the Property Palette of the tab canvas and set the canvas properties according to your needs.
5. Create additional tab pages if needed in the Object Navigator.
6. Set the tab page properties according to your needs.