CRXDE is the eclipsed-based tool used to to develop within the CQ and CRX repository. By default, only a few directories within the repository are visible. The content directory is not one of them. A setting in the repository must be change before it can be seen.
Go to /etc/crxde/profiles/default. There is a property, crxde:paths. This property is a list of String. Add /content to that list and restart CRXDE.