NVivo Memo Links Screenshots Tutorial
Memo Links -- allow the linking of memos to sources or nodes.
Highlight the passage you wish to link to a memo. Right Click. Click Links -- Memo Link -- Link to Existing Memo (choose Link to New Memo to create a new memo and link).
Select the memo of interest. Click OK.
Note the icon next to the "A recession of biblical proportions.." source. This indicates that there is memo linked to that source.