Outbound Policy - IP Forwarding - Drop in - NAT

I have 3 WAN:

  1. WAN1 is IP Forwarding Mode
  2. WAN2 is Drop in Mode
  3. WAN3 is NAT Mode

I want to create outbound rule as priority like below

rule 1 : 1 priority is WAN2
2 priority is WAN1

rule 2 : 1 priority is WAN3
2 priority is WAN1

So I would like to know Can drop in mode and NAT mode route to IP Forwarding mode ?

For WAN1 to work with IP forwarding the WAN1 IP network needs to unique from the drop-in mode LAN/WAN network. Additionally, the drop-in mode LAN/WAN network would have to be routable through WAN1.

So mean Peplink can do outbound policy priority between WAN in drop in mode with WAN in IP Forwarding mode, but cannot do between WAN in NAT mode with WAN in IP Forwarding mode, right ? and can we do between WAN in NAT mode with WAN in drop in mode ?

Outbound policy priority between WAN in drop in mode with WAN in IP Forwarding mode – were the above conditions met?

WAN in NAT mode with WAN in IP forwarding mode can do outbound policies provided the LAN network can be routed over the IP forwarding WAN.

WAN in NAT mode with WAN in drop in mode can also do outbound policies. The drop-in mode network needs to be unique from the WAN in NAT mode.