When starting a project, EDIUS detects Windows desktop size and allocates UI windows automatically as designed. There is no way to alloccate the UI only in single window when running in multiple monitor environment. UI layout needs to be modified manually.

Follow below steps to get & keep expected window layout:

Prerequisite:
Ensure that Extended multiple screen has been configured correctly. Confirm whether below settings are correct on each monitor settings:

– “Make this my main display” is ticked in the monitor settings that you want to use as main display.

– Scale value, display resolution and display orientation are configured correctly.

Procedure

1. Run EDIUS (start new project)
2. UI windows are allocated across over multiple monitors. Modify the window layout to locate all windows in single monitor.
3. Select View > Save Current Layout > New
4. Type preset name like Default then click [OK].
5. Quit EDIUS.
6. On subsequent running, EDIUS will strat with modified UI layout. 

7. Start new project with another profile then quit EDIUS. Take this step for all remaining profiles.
8. Once step#7 completed, quit EDIUS.
9. Navigate to C:\Users\{USER NAME}\AppData\Roaming\Grass Valley\EDIUS\9.00\User\User000\Setting.
10. Copy Setting.esp file (this file contains UI layout information). Copy this file to C:\Users\{USER NAME}\AppData\Roaming\Grass Valley\EDIUS\{EDIUS VER}\User\{Userxxx}\Setting
    * {Userxxx} is user profile folder. If multiple profiles exist, it starts from User000. Setting.esp of User000 is master window layout. Copy it to remaining folders.