Thanks for sharing your feedback again. I am sorry you can not do that at this moment, but I have forwarded this product feedback to product team for consideration.
At the meantime, to bring more visabillity to this, could you please also provide the feedback in Azure Machine Learning Studio(top right corner - smile face icon) as below screenshot? This will help product team to decide which way the product is going to.
Appreciate again your input for the product, and sorry for the current limitation.
A screnario question if you can answer - if the permission level helps for your scenario? Like you can assign a role which has no permission to see those data?
I hope this helps.
-Please kindly accept the answer if you feel helpful to support the community, thanks a lot.