where is the “create new menu” button ?
how can the interface be customised in zb 4r3?
Please post questions in the Questions & Troubleshooting forums; not in the Main forum. I have moved your posts to the correct location but please make the moderating team’s job easier in the future. Thanks. 
As for your question:
- Click Preferences>Config>Enable Customize
- Ctrl+Alt+Drag items where you want them.
- The Create New Menu button is at the top of Preferences>Custom UI. It only becomes active when Enable Customize is on.
thank you!