Activity action: auto-completion of Output Pin properties is very impractical to use

[bobhairgrove]

Using Modelio 4.0.1 on Linux Ubuntu 18.04.

In editing the properties of an Output Pin on a Call Operation activity, it is nearly impossible to fill in the "Matching parameter" property correctly. Even if I type the correct text, it will not be accepted if I do not choose it from the auto-completion list. And it never matches any return parameters directly, only the named "out" parameters of an operation. Of course, if I leave it blank, or null, I get an Audit error.

It would be less of an issue if the auto-completion list were somehow filtered to only include operations in the scope of the operation which owns the current activity diagram, but instead I get over 800 operations to choose from.

Or is there a way of setting the filter somehow? The diagram belongs to an operation which is a private member function of a class. For example, it would be nice if I could somehow set a filter "Other member functions of class XYZ" or something like that.

[bobhairgrove]

OK, I realize that I was doing this the "hard way" ... If I select the called operation in the tree view and drag it onto the diagram, the properties are linked automatically. However, now I am wondering why Modelio doesn't do this automatically if I already have linked the Call Operation to the correct operation but have not yet created any pins?