It's not possible to remove variants from the list. You can copy com.intellij.ide.actions.CreateClassAction and add only those that you need. But having a combo box with just one variant seems unnecessary, you might want to use a simpler UI, e.g. Messages.showInputDialog.
It's not possible to remove variants from the list. You can copy com.intellij.ide.actions.CreateClassAction and add only those that you need. But having a combo box with just one variant seems unnecessary, you might want to use a simpler UI, e.g. Messages.showInputDialog.