Hi Daniel and thank you for your question.
In DxDesigner a connection is confirmed visually (on a printed schematic for example) by a connection dot at the intersection of the two or more net segments. The allowed distance of connection to a pin can be controlled to a certain degree by adjusting the Avoidance distance which is defined under Setup > Settings > Schematic Editor section > Nets > Avoidance Distance. The lower the number to closer you can get a intersecting connection to a Component or Symbol pin. You can also define the size of the connection dot under Setup > Settings > Advanced > Dot Size [in] > Click on the number on the right side of dialog to increase or decrease the size of connection dots.