Playlist "all" in the platform list

[rantanplan]

Hello.

I am trying to do the following:
I have a platform called "Nintendo Wii" where all the Wii games are, in cd format and in digital format (wiiware and virtual console)
I have created two playlists for that platform: "Nintendo Wiiware" and "Nintendo Virtual Console".
In the launchbox I can see all the wii games when I select the "Nintendo Wii" platform and the games separately in each playlist when I click each one.
But in Bigbox I can't get it to work. When I select the "Nintendo Wii" platform, another screen opens to select a playlist with the two Wiiware and Virtual Console options. But there is no way to see all "Nintendo Wii" games
The same goes for the Arcade platform. When you select the Arcade platform in Bigbox, the selection of playlists enters but you cannot see a list of all arcade games.
Is there any way to do it?

[C-Beats]

Typically you would add an "All" playlist to do this. It's pretty easy to do with auto-populated playlists. The criteria would just be Platform - Equals - {PlatformName}