How can I create a New project & Solution in the same, existing , directory? No matter what I do, it keeps creating a new (sub)directory for the project and populating that
You can always move things around manually and edit sln file to fix the project references. For example, if you want your solution file to be in the same directory as the project file, you can cut the solution file from wherever it is and paste it into the project file directory. Then you need to edit the solution file to fix the project reference so that the solution can find the project when it is opened.