When you connect your account to J'JO, your initial portfolio assets don't matter. You can have an empty account at this step.
Once you have connected the exchange, you can invest in the JJO35 systemic index. To do this, use the instructions provided on the pages in the relevant sections.
You have only three coin options for investing:
Make sure to have the exact amount of one of the coins above as you want your portfolio value to be.
If you don't have enough of the crypto above, simply buy or convert the assets you have to the coin you chose to invest on the exchange website.