Dialog call:You have opened a project and are viewing a schematic in the graphical editor. In the Settings: Connection symbols dialog you have selected the option With target specification or as point or if you select a different option, the check box Connection symbols with prompt is activated (command path: File > Settings > User > Graphical editing > Connection symbols). Tab Insert > Command group Symbols > T-node ("Direction") e.g. 
(T-node down).
There are T-nodes for four different directions. For each direction, there are then four variants. These variants determine the flow of the connections.
T-nodes can also be displayed as points.
Overview of the main dialog elements:
1st target <direction>, 2nd target <direction>:
The second target (starting from the connecting point withoungt a designation) is always indicated by the diagonal line. Starting from connecting point 1 or 2, the target is always the point without a designation. Here you specify the desired variant by selecting the corresponding option.
Select this check box if you want the T-node to be drawn as a connection point.
If you selected the With target specification or as point option in the dialog Settings: Connection symbols, the last setting made will be saved, and will be used by default the next time you insert a connection symbol.
First insert a T-node as a connection point. Then insert a jumper. The Draw as point check box is then selected in the Property dialog of the jumper. Deselect this to display the jumper with target specification. When you insert the next double junction, for example, the Specify targets setting will be used by default.
See also
Dialog Settings: Connection symbols
Connection Symbols: Representation of the Connection Direction