static and dynamic nat over VPN

hello

I'm new to sophos xg firewall. our XG runs on SFOS 18 

iwe have an IPSEC tunnel to a different location and I've read about how to do that but there's also a couple of nat rules related to the tunnel interface:

1- static one-to-one source nat

2- dynamic source nat : nat(inside,CBZ) source dynamic CBL OBJ-10.10.10.10

where CBL is an object that includes a couple of IPs

Thanks, your help is very much appreciated