Many users land up wanting to import sentences in the Linguist rather than type or paste them in one at a time. One way to do this is to right click on a group within the Linguist and import a file of sentences, one per line, into that group. But if you want to import a large document and retain its outline structure, some application-specific use of the Linguist APIs may be the way to go.
Importing documents into a knowledge base
We’ve written up how to import a whole web site on California Sales & Use Tax: