Architect Archive

I have couple of structure complexity tapes, what do they do?
When i added them to clothing ive got new skill under skill mods Structure Complexity +0/+7 (0 base +7 from tapes)

IGN: Qback
IGN: Qball Jackson
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TSA IKEA Superstore
Tatooine - TSA Stronghold (chimaera)
We sell: Weapons, Armor, Resources, Housing, Harvesters, Furniture, Food, Buffpacks, Medical supplies,CM supplies Clothing, Slicer tools, Skill tapes, Loot items.