The "Objects to Design" table controls which joints are analyzed in the design.
In the "To Design" column, use the check boxes to specify which joints should be designed.
The "Nodes to Design" column controls the design of the nodes specified for each joint. 'All' is entered by default, so all nodes of the defined joint will be designed. By clicking into a cell, you can design the nodes individually: If you want to only design certain nodes, enter their numbers.