Remove Display Bar
What do you mean?
Basically, most traditional workplace layouts (excluding a tabbed workplace) has a layout consisting of:
1) Application Bar
2) Panel (large area in middle)
3) Status Bar
These can be customized; eg Application and Status Bar can be removed from the layout, or be made smaller, etc.
Display Bar in top of each window can be adjusted slightly only - eg iconS (tools) can be added or removed.
The User's Guides have only small amount of information. Maybe the forum can give you more info?
For deeper understanding, R&D assistance might be required. Speak with your regional ABB sales representative. Maybe a quotation can be made.
I guess you mean the bar with buttons.
If you want to add/remove buttons you have to modify the Workplace Frame.
Select the frame you are running in the workplace, Right click the aspect "Standard Tools" and select config view. From here you can add/remove/rearrange buttons in the display bar.
Good luck with you customization. :)
Best Regards // MAttias