Modifying Physic settings in game (substeps)

Hello friends,

I’m developing a game in wich the use of the substepping in physics calculations is very important.
The game consists in several mini-games, all of them using physics intensively. The thing is that in some games the physics calculations are more realistic without substepping activated and in other ones the behaviour is way better with subbsteping on.

So the question would be:

is there any way to change this physics settings in game (via blueprint or c++)?

Thanks