Packaging Soft References

Hello,
getting some trouble to package my maps, here what i’m trying to achieve :

I would like to package only 2 maps ( main menu and a test map )
But those maps have many soft references, when choosing to package the 2 maps, the system won’t package the soft references. I’ve done 2 PrimaryAssetLabel with all dependencies(hard and soft) of each map. But i don’t see any option to add those to the package.

So question is : how do you package a map or tow with the required soft references ?