By default, the mabl Desktop App automatically aligns the trainer window for an active training session to the right of the browser window. Version 1.5.3 of the desktop app adds support for disabling this behavior so that the trainer window can be positioned independently. This also now makes it possible to set the browser window for a training session to full-screen mode.
To disable auto-positioning, select the Edit > Preferences option to open the preferences dialog.
Then select the Trainer preferences submenu, uncheck the Automatically align trainer window to right of browser window setting, and click Save to save your changes.