How to find the mapping relationship between the Assignment Block in WebClient

Some Assignment Blocks and fields are mapping with set types, some Assignment Blocks and fields are mapping with relationships.

Then I want to study, how to find the mapping relationship between the Assignment Block in WebClientUI and Set Types or Relationships?
There is 2 ways help me find the answer.
The first way is:
1.You can got an overview mapping relationship in below configuration point.
Example System: QHD
1.1 TCODE:comm_hierarchy
1.2 Find the hierarchy ID belong to your product.

1.3 Find the belonging categary

1.4 Then you can find the Assigned Set Types and Relationship Types for the Assignment block.
For example, you want to know which set type or relationship is mapping with field ‘GTIN’.

Then you can find the answer. Set Type: COMM_PR_GTIN is mapping with field ‘GTIN’

.
For example, you want to know which set type or relationship is mapping with Assignment block ‘Service Parts’?

Then you can find the answer. Relationship: SPARE is mapping with Assignment block ‘Service Parts’.

The second way is:
2. Please refer to below blog from Jerry.
https://wiki.scn.sap.com/wiki/display/CRM/How+to+know+where+the+assignment+block+in+product+overview+page+come+from
Tips:
How to find the Hierarchy ID of this kind of product.

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