A detailed description of Window Management see here...
Add Application window / Sidebar: Selecd "Window" in the component list of the Options dialog and then select the appropriate entry from the context menu.
Remove or rename Application window / Sidebar: Mark the window in the component list of the Options dialog and select from the context menu the appropriate entry.
Hint: The first application window (main application window) can not be removed or renamed.
For more information: The Options dialog - Add, remove and rename Components...
Settings
Close empty Tab window automatically: Tab windows are automatically closed when they are empy after closing or disconnecting a document window.
Allow Window positioning by drag & drop: Disable this option to prevent docking/undocking of document windows by Drag & Drop. This setting applies to all application windows. The docking or undocking via context menu is still possible.
Control active application window using a hotkey
Using this hotkey you can control the keyboard navigation between the tab windows in the active application window.
Window background color
Using the settings for color 1 and color 2, you can adjust the gradient background for the respective types of windows. A background color without gradient can be set if "Color 2 = Color 1".
Show window with call
Application windows and sidebars can be automatically displayed on incoming and outgoing calls. It is also possible to hide automatic-pop-up windows, again after the end of a call or restore to its previous state.
Hint: Settings for the automatic pop-up mode of the PhoneDialog are available under [Options > Telephony > Phone dialog > Dialog Settings].
Settings to automatically fade-in a phone book data mask can be found in the "Properties (folder)" of the respective phonebook folder.
Tab Window
Hidden title bar: This option allows to display a hidden title bar (Tab) as a click-sensitive "placeholder".
Hint: Title bars, which contain more than one tab can not be hidden.
Completely hidden title bars can be shown via the dialog right-click menu or the Window menu.