This is an expert level action and it can be done only in a Daddy app.
Open a Daddy app.
Go to Whitelabels tab in a sidebar.
Click on Accounts tab.
Click on a name of your company (whitelabel).
Check that currency is in the list. If not — add it.
Click on currency groups.
Now you can see a window with list of account types and group names on the right to them.
Just choose a group in a dropdown list.
Click save on a small window.
Then click save on a big one.