Option to only show immedeate child csproj's

[Shadowblitz16]

I have nested projects but when I select add reference it pops up with a lot of options that aren't an immediate part of that project.

For example if I try to add a reference to Core I would only like it to show options for Arch and Arch.Extended

I suggest that a couple of options be added to the settings..
ShowParent : [All, Immediate, ImmediateOrNone, None]
ShowChildren : [All, Immediate, ImmediateOrNone, None]

All would show csproj's all the way to the top or bottom
Immediate would show csproj's in the first immediate folder
ImmediateOrNone would show csproj's in the first immediate folder or the current folder
None would show csproj's in the current folder