Add an empty security, currency CHF
use
as latest quote
and
https://markets.vontobel.com/api/v1/charts/products/CH1341853666/detail/5/0?c=en-ch&it=1
as historical quotes
the howto is described in Vontobel-Zertifikate als Wertpapier anlegen - #6 by ProgFriese