CheckPoint to FortiGate conversion

We are converting checkpoint configurations to fortigate (finally getting rid of it)

But I have seen the interface setting and here is something I am not used to it

In Checkpoint the LAG interface itself (the physical) has a network without VLAN 

the Forticonverter converter exactly the same settings. see screenshots bellow:

I am used to put all IP addresses and betworks to logical interfaces with VLANID

So my question is, will this work normally in fortigate? with VLAN ID 1 ? untagged ? can this interface (the physical) be assigned to policies later ?

Thanks