Where can the block center be found and how can it be set up ?
The Block Center is now called the User Part Center and can be found under the Utilities tab. First draw the dialogs wider and then dock on the right or left.
It is normal that no content is displayed. As of this version, standard elements such as stairs were managed in other folders , so that only user parts are stored here.
The path to the center for user parts is managed via the platform settings.
Simply search for PS_USERPARTCENTERDB in the dialog for the variables. Then the two paths, main folder and database file, are displayed and can also be changed via Edit