Plugin actions not visible

I made a plugin sample using IntelliJ DevKit according to this page http://www.jetbrains.org/intellij/sdk/docs/basics/getting_started/creating_an_action.html. I added a Welcome Screen entry and a new menu with a single entry.

It works fine under intelliJ but I cannot see any menu entry in CLion (which is the target of the plugin).

The plugin appears installed in the plugin list of CLion.

Any help would be appreciated.