to answer your question we need to know which version of EPlan you are using (EPlan 5.70, EPlan P8 v2.0, etc.).
Basically, you can apply more than one terminals with the same number (e.g. 1, 2, 3..., or "N"), but you have to specify "multiple use" in the properties.
EPlan basically will set the internal jumpers (e.g. between your three blue terminals) automatically.