You can run scripts in EPLAN without having licensed the EPLAN API. Scripts are executable program code, written in C# (*.cs files) or Visual Basic.NET (*.vb files). Scripts always exist as source code. When you start a script, it will be loaded into the system, compiled and then executed.
For scripting, go to the ribbon item File > Extras > Interfaces. You will find the category Scripts.
After calling File > Extras > Interfaces > Scripts > Run, a file dialog appears and a script file to execute can be selected.
In script following assemblies can be used:
Also these EPLAN assemblies are referenced by default:
There is no way to reference additional assemblies (.NET framework, EPLAN or other providers)!
This feature is only available for EPLAN API developers having "EPLAN API Extension" license.