How can I associate NAT Rules (from connections) Virtual Network Gateway?

Ok, so i have got Virtual network gateway, there are NAT Rules and Connections.
In Connections → NAT Rules there is:

Associate NAT rules that have been configured on the linked Virtual Network Gateway. Learn more

I have a ingress NAT Rules there linked.

But how can i make it from Terraform? (associate NAT Rules with Connections)

Everytime when i want to run pipeline now, i have got error:

error: Creating/Updating Virtual Network Gateway: (Name "examplename-connectivity-euw-prod-01" / Resource Group "rg-example-euw-prod-01"): network.VirtualNetworkGatewaysClient#CreateOrUpdate: Failure sending request: StatusCode=400 -- Original Error: Code="GatewayNatRuleIsStillInUse" Message="The NAT rule /subscriptions/xxxxxxxxxxxx/resourceGroups/rg-example-euw-prod-01/providers/Microsoft.Network/virtualNetworkGateways/vpngw-example-euw-prod-01/natRules/nat-rule-01 is still in use and cannot be deleted. 

I dont want it to be deleted at all, i just want to make another, different connection without touching those linked NAT Rules.

any news? please!? still its not done.

It is still not resolved.

Associate NAT rules that have been configured on the linked Virtual Network Gateway.

Cant do this in terraform.

still waiting for any answer from hashicorp!!

there should be something like

azurerm_virtual_network_gateway_ associate nat rules to link it.

any ideas?