In the program options you can find the entry " Maximum board windows " and " Maximum Database windows " under menu File - Options - Limits.
What can you do with these entries in practice, or what are these values supposed to be good for ? This feature is especially useful if you have a somewhat older machine with low system resources. Each open window demands system resources and memory, which on weaker machines can lead to the fact that a smooth workflow is no longer guaranteed. If you use ChessBase 16 on an older computer with relatively little memory, you can speed up the workflow by reducing the values.
