Adding road rides to FTP build plan

I am hoping someone will be able to help me. I am looking to do a few of my FTP builder plan sessions on the road, and would like to be able to tick them off as complete on the zwift app. Is this possible? and if so how do I go about it? I have read you just do the session and add it as done on road next time you log in to zwift. This seems a rather inadequate explanation, im hoping someone may be able to elaborate. Thanks in advance.

When you go into Zwift and it presents you with the next available workout, tap the “I DID IT!” message in the bottom right. It’s very small so you might have missed it. Your training plan will then move on to the next workout session.