On the Personal wallet page you can see the list of all the assets available.
To make a transfer to an external address:
1) click on the desired asset, then on Transfer
2) on the next page, enter the beneficiary address or ENS domain, as well as the amount to be transferred
3) click on Proceed. At this point the summary page with all the data will be shown: you will have to click on Confirm with password
Once the transaction is confirmed, it will be executed according to the normal timelines of the reference blockchain.
Note: you can change the priority of the transaction in the Advanced Settings menu (top left button on the transfer screen).