By clicking on the "Local Library" drop-down on the Library Panel, local and remote libraries can be selected.
By default, the local library is used. Once another library is selected, a dialog box appears if there are any elements that need to be removed from the canvas.
{primary} Make sure you saved your entity, because the library can be changed only with empty canvas. Once you attempt to select another library, a dialog will appear where you can clear the canvas or cancel the action.