See the image.  First you need to click on Remote Desktop and configure RDP to be enabled and create an account with an expiration.  It’s a good practice to have the account expire sooner than later if you are only going to be doing work for a short period of time.

After creating an account, then you need to click on Overview and select the instance you want to remote into.  You will then get a “Connect” button in the upper right hand corner, which will download a temporary RDP profile for you to use.  Just launch it and it will open up the RDP client and start the connection process.