Clickable for this export means: if there is a hyperlink on a topic, a click on the map after export will take you to that link.
The functionality you require can be achived using
http://mindjetlabs.com/cs/files/folders/mindjetlabs/entry50.aspx Mindjet Active X Viewer export in MindManager 6. A recent comment suggests this does not work in MindManager 7. Also note the viewer only works in Internet Explorer.
The Active X export is built in to Map4Web (which also only works with MindManager 6)
This export creates an Active X viewer object in a web page (like a Flash object, YouTube etc.). The original map file is called by the viewer and you get limited viewing and printing capability. You can control level of detail just as you request.