workflow doc template table group by category

[i_yeh]

Hi Need help with doc expression for a workflow with the expected output (PDF): there's only one data table, appreciate your help thanks

Manufacturer A

Product 1	Chemical Name 1	Usage 1	CAS1	Certificate 1
Product 2	Chemical Name 2	Usage 2	CAS2	Certificate 2

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Manufacturer B

Product 3

Chemical Name 3

Usage 3

CAS3

Certificate 3