Edit 3D Object Properties from Widget Sliders. Possible?

Hi there,

I’m kind of new to UE4. I understand the basic functionality of the program, but I am unsure if some of these ideas I have are possible.

I am trying to create a VR space where the player can use widget sliders to change the size, mass, and material of a ball with physics (in real time). If possible, I’d also like them to be able to change the material properties of the walls around them. Unfortunately, I don’t know if either of these things are possible, and if they are, I have no clue how to do it. I could not find anything about this in User Guide.

So, is it possible to give the player live control over the physical properties of a 3D object, and if so, how do I do it? If it involves any C++, I will need very specific instructions because I am not too familiar with the language. Anything helps. Thanks!