On viac, you could use a custom strategy to avoid the home bias and reproduce a world exposure by picking your own etf.
In the 40% chf exposure, you could select
|—|—|—|
|CSIF SMI|2%|CH|
|CSIF SPI Extra|1%|CH|
|CSIF World ex CH hedged - Pension Fund|37%|CHF|
For the rest balance it with world exposure to get close to a market share by gdp instead of market cap:
|CSIF Europe ex CH|23%|Euro|
|iShares Core S&P500|17%|USD|
|CSIF Canada|3%|CAD|
|CSIF Pacific ex Japan|6%|Asia|
|CSIF Japan|4%|Asia|
|CSIF Emerging Markets |7%|Asia|