This is called CSG (Constructive Solid Geometry), not many game engines actually support it out of the box, if any (I know Unreal Engine 4 does not). You’ll find this kind of boolean operation in 3D graphics programs such as Blender 3D, Maya, etc.
From a quick search, it seems it most probably won’t be implemented.
If you’re confident enough in Javascript and WebGL, you could probably extend PlayCanvas to incorporate the feature using this as a basis: https://github.com/evanw/csg.js/.