The Calm Balm Vendor is a vendor which vends, unsurprisingly, Calm Balm.
"Now you do not have to run back to the comm room or to the engine room and inject it over and over again! Now you just click the little button and the vendor and you have calm balm! Even your creatures can get this on its own!"
The Calm Balm came with the Hardman Norn pack, and needs to be injected into the world before this vendor, otherwise it won't work.
Sometimes the Calm Balm Vendor does not install. To install, you need to place the agent file in your My Agents folder (for Creatures 3 and Docking Station), often located in: C:\Program Files\Gameware Development\Creatures Exodus\[Game name]\My Agents\
NB. After the game has been run next, if it produces any catalogue-related errors you might need to check all the Catalogue files are in the C:\Program Files\Gameware Development\Creatures Exodus\[Game name]\Catalogue\ directory as well as in the My Documents one, (and that you have run the Creatures Remastered Patch).