I creat a boat and use the water plug-in to creat a sea，my boat have buoyancy component。the worst thing is that，the boat float very nice，but when i walk on the boat，if my charater location Z is 100，and i do not control my charater，my charaters location Z will be 100 forever，the boat will never change my charaters Z location，my boat make no different to my charater。 if the boat is under water，mycharater walk on my boat，my boat will never float up，my boat will be under water forever。if my charater`s capsule component is simulate physics，the problem is gone。but i can never control my charater。what can i do，i want a boat，that i can walk on it，because of sea waves，my charater can swing up an down with it