To successfully integrate our products with custom entity-forms, the navigation configuration has to be applied manually.
This article describes, how MS Dynamics CRM Menu Navigation Links can be added manually to DocumentsCorePack and ActivityTools.
This article describes how to define custom parameters for embedded ActivityTools pages (For example to pre-filter activity types).
This article is about the DocumentsCorePack (DCP) FileExplorer in IFD environments for CRM 2011, 2013, 2015 and 2016.
Basically, DocumentsCorePack's FileExplorer is not supported in CRM IFD environments. Nevertheless, it could be possibly working. If you want to try to configure it, follow this article.