Line and stacked column chart

Hi

I was watching a video on how to use Line and Stacked column visual. In the video, he went to Format--> Y axis --> Show seconday (the video link is below).

I used the same visual and to my surprised PBI already created 2 Y axis for me. Is that something new added that the was not availble when that video published? Thank you very much.

The video

https://www.youtube.com/watch?v=ypwc9U58gIQ&t=277s

My chart: