Yes, you can. You can do so through:

1) Web App

Go to your name on the right top of your screen > click on "Withdraw/Transfer" > click the intended portfolio > adjust the slider according to your desired withdrawal amount and click "Continue" to proceed.

​​

2) Mobile App

Click the "Three horizontal lines" on the top left part of the screen > select "Transfer funds" and choose "Take money out" > click the intended portfolio > enter the amount according to your desired withdrawal amount > select your bank account number and click "Continue" to proceed.​​