Playlist - How can I show the custom data in the playlist?

When I create a playlist by default you see the title (name) and description of each video. I need to add another language and I had thought about adding new custom data to indicate the title2 (name2) and description2 in another language:

I don’t know how to tell the playlist to select the new fields (name2 and description2) by default so that the player can be seen in the selected language: