Outliner- Hierarchy suggestion

While working today, a had a really simple project, just a little light bulb and some other parts of it like wires, so i created an empty named it Bulb and then created its parts like Bulb_body, wires etc. Now when i looked into the outliner to find other parts, there wasnt really a way i can tell that Bulb_body is child of Bulb empty by looking at the outliner, as they were on the same level in the outliner, which I find a bit confusing. So I suggest children to be kept inside the parent in the outliner. For example look at this UI -> docs.unity3d.com/uploads/Main/HierarchyParenting2.png

Second suggestion I would like to make is to provide us with a dropdown like thing so we can select the collection to be shown in the outliner, and another option to make only selected to be visible. Like solo mode in substance painter. We already have local view but i think switching from outliner would be much more easier. Dropdown example(my mspaint skills aint good) -> gyazo.com/e16eb5f4b67a094f3c4a35aa85e57f8f

Just my opinions and suggestions. Would love to get some feedback and ways to improve it. :)

I am new to this site, may I know how I can comment, I keep on getting these weird errors of permission denied, I had to make some suggestions on some posts but am unable to. Thanks in advance.

Edit 1:- I just found out about scene display option in outliner but when using that the objects are no longer in their collections.