Group in a horizontal line separated by commas

E

Ellen

Hello,
I'd like to group data in a horizontal line separated by commas. For
instance,
Let's say we have two fields, category and item. I'd like the report to
look as such:

category 1
item 1, item 2, item3

category 2
item 4

category 3
item 5, item 6, item 7, item 8

Thanks in advance for your help!
Ellen
 
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