Tap on a goal, select 'My fund mix' and then 'Change fund mix'.
If you want to make a change but still get our advice, select 'Choose one of ours'. You can then choose a theme and we’ll recommend a mix of funds with a tilt of investments towards that theme.
If you want to choose a fund mix without advice, select 'Create your own'. You can then select your own mix of funds on your own.