QOS, traffic shaper with multiwan and voip

[frizouille]

Modem 0        Modem 1 
(pppoe)        (pppoe)
      #                  #
      #                  #
      #                  #
      #                  #
      #                  #

---

*        Firewall pFsense          *

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Lan0    Lan1  Lan2      Lan3
  #          #          #            #
  #          #          #            #
  #          #          #            #
  #          #          #            #
  #          #          #            #
0.0      1.0        2.0        3.0

Lan0 : Private network with voip :192.168.0.0 , 255.255.255.0 ( load balancing on WAN0 and WAN1 , voip on WAN1 )
Lan1 : private network without voip :192.168.1.0 , 255.255.255.0 only access on WAN0
Lan2 Hotspot network without voip :192.168.2.0 , 255.255.255.0 only access on WAN0 ( captive portal and transparent proxy )
Lan3 : DMZ 192.168.3.0 , 255.255.255.0 (not currently used)

Here is my question:
I want to implement a QoS for Voip, I used the traffic shaper wizard with multiwan and MultiLAN .
1 - After the setup wizard is what have I need to configure a rule in ' Floating rules'
2 -What have I create rules for each protocol (http, p2p … ) because after a 'reset states ' when I call I have some cuts when I navigate at the same time on the net.
3 - can I put  a rules in LAN0 and LAN1 to configure 'Queue '

Sorry for my english