Associate more than one change to a request v8116

Associate more than one change to a request v8116

I cannot seem to associate more than one change to a request. Once a single change is associated, the Associate Change button changes to View Associated Change. I would like to associate a change raised by the request. I thought I could circumvent this by creating a new (second) change first and then associating a request from the change. However, when I view ALL to associate the request, the request I would like to associate to is not in the list.
 
Please advise. Thanks.

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