Insert a single horizontal line by following one of the following steps:

• Click on the toolbar at the top of the SFC editor。

• Double click on the grid area where you want to insert the component and click on it in the button group

• Press F7 hot key。

Afterwards, the editor will display a simulated dashed line, which can be elongated by moving the mouse. Click the mouse to turn the dotted line into a solid line.

图1 virtural line

At this point, the addition of a single horizontal line is complete.

Single horizontal lines are mainly used to connect multiple transfers, so be aware of illegal scenarios.

图2 illegal situation