Switch in RB493 vs RB2011

I have in my network two Mikrotik. A RB493 like switch and AP, and a RB2011 like Router+switch+Backup AP

I realized in the 2011 I am able to see the traffic in each one switch port. I'd created 2 master (port 2 and 6). 3, 4 and 5 are slave of 2, and 7, 8 ,9 10 are slave of 6. And after a bridge between 2 and 6.

I realized in the bridge menu, ports idiomatically the ports 3, 4, 5, 7, 8, 9 and 10 apper in the PORTS list, even, If I didn't create in like a port bridge directly. And I am able to watch the traffic in each one port.

However, in the RB I have port 1, port 2 like master and 3, 4 ...... like slave from the master 2.

With that, I am not able to watch the traffic in each port.

If I delete por 3 (for example) from the master port, I can do it, but I am not able to add like a port in the bridge, I got the following: Couldn't add New Bridge Port - bridging master-port with other port from the same switch group not supported for this switch (6)

I understand. I think so, but why is the difference in each one....
I only want to monitor the bandwidth in each port. Now I am getting a full usage in the bridge (port 1 + port 2 + wireless)

Here the configuration in the RB2011:

/interface ethernet
set [ find default-name=ether1 ] comment="WAN Port FTTH" name=ether1-gateway
set [ find default-name=ether2 ] comment=Homero name=ether2-master-local
set [ find default-name=ether3 ] comment="VoIP Habitacion Morado" master-port=ether2-master-local name=ether3-slave-local
set [ find default-name=ether4 ] comment="AP 2.4 Interno" master-port=ether2-master-local name=ether4-slave-local
set [ find default-name=ether5 ] comment=Libre master-port=ether2-master-local name=ether5-slave-local
set [ find default-name=ether6 ] comment="PLC / Sony Vaio" name=ether6-master-local
set [ find default-name=ether7 ] comment=Canal+ master-port=ether6-master-local name=ether7-slave-local
set [ find default-name=ether8 ] comment="PS3 / Homero cuando esta en hab" master-port=ether6-master-local name=
ether8-slave-local
set [ find default-name=ether9 ] comment="Clientes Red 12. Switch" master-port=ether6-master-local name=
ether9-slave-local
set [ find default-name=ether10 ] comment="Cableado al techo" master-port=ether6-master-local name=ether10-slave-local
poe-out=off

/interface bridge
add fast-forward=no name=bridge-airbnb
add fast-forward=no name=bridge-clientes
add admin-mac=00:0C:42:BC:80:2B auto-mac=no fast-forward=no name=bridge-local
/interface bridge port
add bridge=bridge-local interface=ether6-master-local
add bridge=bridge-local interface=sfp1
add bridge=bridge-airbnb interface=airbnb
add bridge=bridge-local interface=wlan1
add bridge=bridge-local interface=amer-sup
add bridge=bridge-local interface=ether2-master-local

/interface bridge port
add bridge=bridge-local interface=ether6-master-local
add bridge=bridge-local interface=sfp1
add bridge=bridge-airbnb interface=airbnb
add bridge=bridge-local interface=wlan1
add bridge=bridge-local interface=amer-sup
add bridge=bridge-local interface=ether2-master-local

[admin@Sprinfield Mikrotik] /interface bridge port> print
Flags: X - disabled, I - inactive, D - dynamic

INTERFACE BRIDGE PRIORITY PATH-COST HORIZON

0 ether6-master-local bridge-local 0x80 10 none
1 I sfp1 bridge-local 0x80 10 none
2 I airbnb bridge-airbnb 0x80 10 none
3 I wlan1 bridge-local 0x80 10 none
4 I amer-sup bridge-local 0x80 10 none
5 ether2-master-local bridge-local 0x80 10 none
6 ID ether7-slave-local bridge-local 0x80 10 none
7 ID ether8-slave-local bridge-local 0x80 10 none
8 D ether9-slave-local bridge-local 0x80 10 none
9 D ether3-slave-local bridge-local 0x80 10 none
10 ID ether4-slave-local bridge-local 0x80 10 none
11 D ether5-slave-local bridge-local 0x80 10 none
12 ID ether10-slave-local bridge-local


Now in the RB493

/interface ethernet
set [ find default-name=ether2 ] name=ether2-master
set [ find default-name=ether3 ] master-port=ether2-master name=ether3-slave
set [ find default-name=ether4 ] comment=Artem master-port=ether2-master name=ether4-slave
set [ find default-name=ether5 ] comment="Ubiquiti 2 AP" master-port=ether2-master name=ether5-slave
set [ find default-name=ether6 ] comment="Ubiquiti 1 AP (Teletronics)" master-port=ether2-master name=ether6-slave
set [ find default-name=ether7 ] comment=Rebeca master-port=ether2-master name=ether7-slave
set [ find default-name=ether8 ] comment=Suomi master-port=ether2-master name=ether8-slave
set [ find default-name=ether9 ] master-port=ether2-master name=ether9-slave

/interface bridge
add fast-forward=no name=bridge1
/interface bridge port
add bridge=bridge1 interface=ether1
add bridge=bridge1 interface=ether2-master
add bridge=bridge1 interface=wireless-01-24

/interface bridge port
add bridge=bridge1 interface=ether1
add bridge=bridge1 interface=ether2-master
add bridge=bridge1 interface=wireless-01-24

[admin@Switch-customer+AP] /interface bridge port> print
Flags: X - disabled, I - inactive, D - dynamic

INTERFACE BRIDGE PRIORITY PATH-COST HORIZON

0 ether1 bridge1 0x80 10 none
1 ether2-master bridge1 0x80 10 none
2 wireless-01-24 bridge1