SimpleMoveToLocation How to set speed?

SimpleMoveToLocation How to set speed ?

You can set the max speed and acceleration in your character class. You can change them at runtime as well for different situations.

Thank you for answer !!
How to set runtime ?
My code :

UNavigationSystem* NavSys = GWorld->GetNavigationSystem();
float Distance = FVector::Dist(DestLocation, GetActorLocation());
if (NavSys && (Distance > 120.0f))
NavSys->SimpleMoveToLocation(GetController(), DestLocation);

Hello where can I find those fields ?

From your character class:

UCharacterMovementComponent *MoveComp = GetCharacterMovement();
if (MoveComp)
     MoveComp->MaxWalkSpeed = NewWalkSpeed;