If you wish to change between DIY and Managed, or ISA and GIA, you will need to create a new portfolio and initiate a transfer of funds from your old portfolio.
We are soon to release in-species transfers for internal portfolios, please keep an eye our on our Community page for the latest updates on this.
Please note: Withdrawing funds from one portfolio and depositing them into another via your bank account may result in losing part or all of your ISA annual allowance. Please make sure to transfer your funds internally as described here.