Sugar Connect - How to relate an Email to an Opportunity searching by additional fields

Hi all,

when you want to Archive with Options an Email you can search an Opportunity (or another kind of Record) only by Name.
On our CRM we often refer to an Opportunity by Code (custom field ) or Account Name.

How to search by those two fields archiving inside the right Opportunity?

We'd like to avoid the redundancy of repeating Code and Account inside the Opportunity Name.

Thanks