A dialog box for selecting a GDB is opened. After pushing the button OK, opening of selected GDB is performed.
Menu item GDB+Open or toolbar button 
of the main window.
It is also possible to start ObjectLand with simultaneous opening of GDB. To do this it is required to double-click on the file name with GDB extension in any open Windows folder.
To open one of the recently opened GDBs it is enough to choose the name of this GDB in the history list in GDB menu.
Opening GDB during ObjectLand work
ObjectLand start by association with GDB file
Selecting GDB from history list
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