[Lazarus] why can only 1 DataModule be auto-create?

[Juha Manninen]

I cannot reproduce that.
I just tested by creating 2 DataModules in a project and they both are
auto-created. I can move them between the 2 lists without problems. I
have Linux but it should be the same on Windows.

You have something unusual in your configuration or unit naming or something.
You can attach your (compressed) project here and somebody can take a look.

Juha