Not exactly what you want to know, but here are somes rules about objects reverb
From the manual :
"To ensure that reverb does not continue past the fade out, but rather that it breaks off,
arrange the object's parameter "Volume" in the FX/routing dialog after the effect."
The reverb at the end of an object depend if there is a fade-out or not
- If no fade-out the reverb continue after the end of the object, depending of the Payback parameter "Maximum reverb time for objects without fade-out"
- If fade-out,the first rule applies