First problem: Window behaviour: The HTML Card is not docking anymore, only floating.... The Treeview is docking correctly after floating... (yes, I did find the context menu for the subwindow)
Second problem: Errors in Statistic: Design is "2D-columns" Result: Two columns with book "in selection/not in selection" But: the right column is pinned to the right border of the window. (only in fullscreen there are some mm free space on the right end) And: No counting for the columns And: No counting for the total number of books.