This dialog allows the designer to specify the target schematic document on which to move the currently selected design objects, when using the refactoring feature. Refactoring allows circuitry to be moved around between the project's source schematics, and is particularly useful where a sheet is becoming overloaded, or the circuitry is better contained as a sub-sheet that is referenced by a sheet symbol on a sheet above it in the hierarchy.
In the Schematic Editor, first ensure the design objects constituting the circuitry to be moved, are selected in the workspace. Then either:
The main area of the dialog lists all candidate schematic documents for the project, that can validly be used as the target sheet for the move.
Simply click on an entry to select the required document.