Right now all the imported resources from IMS-CC packages have their "visualisation settings" undefined, so default behaviour happens: The resource contents replaces the whole page, losing Moodle navigation.
IMO it would be great to apply the "Show navigation: Yes, without frame" setting to all the imported resources, that way Moodle navigation will be present in all resources and contents will be embed into <object> tag automatically by Moodle.
To fulfill this, all we need to do is to change the <OPTIONS> tag in the generated moodle.xml from:
<OPTIONS></OPTIONS>
to:
<OPTIONS>objectframe</OPTIONS>
Seems simple and it's really a big usability improvement for imported resources.
Ciao