During the review of this ticket: https://www.noesisengine.com/bugs/view.php?id=4189

I was unable to progress past Step 6) as it appears that now, MultiBinding items can't have their 'Path' Property bound (3-Dot "Create Binding" option is greyed-out/disabled)

Repro Steps:

1) Create a Page with a MainPage.xaml.
2) Create a DataStructure named 'MyDataStructure', containing two 'Number' Single Properties 'MyFirstProperty' and 'MySecondProperty'.
3) Create a DataSet for the DataStructure named 'MyDataSet', and fill in a value of '20' for MyFirstProperty, and '10' for MySecondProperty.
4) Apply the MyDataSet DataSet to the root of MainPage.xaml

5) Introduce a TextBlock to MainPage.xaml, and in its 'Text' Property, click on the 3-Dot menu and select 'Create MulitBinding'.

6) Click the '+' (Add icon) at the top right of the MultiBinding Window, and from it's "Path" Property, attempt to create a Binding to the the 'MyFirstProperty' Data Property.

Observe how the option is not available for selection.

Expected Results: Multibinding Items can be bound to Data.