Np Glad was helpful
What happened is that you had them in a container so when you put them in a container:
1-If you create one object from the container then it will create all the objects inside the container
2-The same when you delete one object it will delete all the objects inside the container
3-The same when you pick one object it will pick all the objects inside the container
The Hierarchy is a bit different:
1-You always need to pick the child or parent
2-You have more control over if you want to spawn the Hierarchy or not so you are not locked as the containers do, you have more freedom.
If you like to spawn the children with the parent you can create the Hierarchy in the editor then when you create the Parent you have an option to spawn the Hierarchy.
-The object naming is good I do the same
-The layout however I will do it differently as just the Letters at the beginning it will make my brain think all the time what layout is this?? jeje
So I normally do:
Layouts:
Menu
info
Game
Credits
EventSheet:
Menu_E
Info_E
Game_E
Credits_E
But You follow what you like and what is best for you as everyone has his own way and none is better than the other as long it makes your life easier.