Many to many relationship but not appearing in subpanel

Hi good folks

I´ve installed Sugar Connector for DocuSign from W-Systems Corp v. 1.5.32 on Ent 7.7.1.0. The DocuSign Envelopes module comes default with many to many relationship to both Opportunities and Accounts:

However, the DocuSign Envelopes does not appears in the Subpanel of either Opportunities nor Accounts. Why is that?

I mean, can a module be hidden from Subpanel even though there is a many to many relationship?

As always, thanks for your help,

KGM