Perform calculation on model object

I have a model object with 30 different properties with the following structure:

                    xyCell: {{2609×3 cell}}
                    sNames: {1×55 cell}
                    tNames: {'Country'  'Slist'  'Climate'}
                    covFlag: [2 1 1 1 1]
                    ScaleFlag: []
                    a2s: 50
                    b2s: 1
                    Sigma: [55×1 double]
                    F: 6
                    V: [5×5 double]
                    U: [15×15 double]
                    G: [15×1 double]
                    A: {[101×2 double]}
                    P: [101×2 double]

I want to run the model numerous times and save an object for each run and then calculate the mean of all of the object properties for further calculations.

I have managed to save the object for each run by using a simple for loop:

for i:1:10
...
NewObject(:,i)=Object;
end

And I can access each of the object by:

NewObject(1,i).G

But I am really struggling when I want to take the mean of each data point across the different (n=i) object layers. Maybe this is not possible? Or if it is possible I would appreciate any guidance.