Redirect all internal traffic to services (like NTP, DNS,...) at any IP to specific internal IP

We have switched from Sophos UTM to Fortigate and we used to have DNAT rules to redirect all internal traffic to any destination with specific service to secific internal IP. 

scr.ip ANY > dst.ip ANY > dst.port tcp-udp/123 > dst.ip 10.20.30.40 > dst.port tcp-udp/123
src.ip ANY > dst.ip ANY > dst.port udp/53      > dst.ip 10.20.30.50 > dst.port tcp-udp/123

I only can find DNAT via Virtual IP - but there is no option to create rules like above.

Can anyone help me out or open my eyes to find the way to go.

Thx and greetings
Christian