Not perfect solution, but using wget I was able to go through all help pages and save them all.
Example:
$ wget -r -k -E http://<ip_address>/Help/
$ tree
.
└── <ip_address>
├── Areas
│ └── HelpPage
│ └── HelpPage.css
├── Help
│ ├── Api
│ │ ├── DELETE-api-delivery-Data0-is
│ │ ├── DELETE-api-master-Data1-id
│ │ ├── DELETE-api-master-Data2-id
│ │ ├── DELETE-api-master-Data3-id
│ │ ├── DELETE-api-master-Data4-id
│ │ ├── DELETE-api-master-Data5-id
│ │ ├── GET-api-OtherApi1
│ │ ├── GET-api-OtherApi2
│ │ ├── GET-api-OtherApi3
│ │ └── GET-api-OtherApi4
│ ├── index.html
│ ├── ResourceModel@modelName=Data1
│ ├── ResourceModel@modelName=Data2
│ ├── ResourceModel@modelName=Data3
│ ├── ResourceModel@modelName=Data4
│ └── ResourceModel@modelName=Data5
└── Help.1