Problem with TREX semantic search on a specific index

Hi,

I want to enable semantic search on our Trex portal search, but only on one specific index. I followed the guide: "How Tou2026enable semantic search/search for synonyms in TREX".

There it says:

"If you want to activate the semantic search only for a certain index, copy it to the index directory

<TREX_DIR>\index\semantic_test"

But I don't know what to copy, what is meant by "it"? I tried it with the topic maps and so on. Couldn't get it working.

Any hints are appreciated.

Kind regards,

Christoph