op-packages/luci-app-strongswan/root/usr/share/luci/menu.d/luci-app-strongswan.json

{
        "admin/vpn/strongswan": {
                "title": "IPsec",
                "action": {
                        "type": "view",
                        "path": "strongswan/strongswan"
                },
                "depends": {
                        "acl": [ "luci-app-strongswan" ],
                        "uci": { "ipsec": true }
                }
        }
}