I cannot find a complete one.
The essence can be found here:
https://superuser.com/questions/1855137/setup-of-new-mikrotik-router-to-act-as-a-switch-with-wifi-enabled
On the other hand, if you start with a blank configuration (let’s say you’ve factory-reset it, then connected via mactelnet/macwinbox and opted to remove the defconf), there’s even less to do:
Create a bridge; add all ether ports (as well as the wlan interfaces) to the bridge.
Create a DHCP client on the bridge.
Set the wlan interfaces to mode=ap, configure a SSID and a security profile.
That’s pretty much it.
A little expanded, see this post by robmaltsystem:
http://forum.mikrotik.com/t/simple-ap-bridge-setup/126375/1
The differences should be only in the way the wifi interfaces need to be configured, you are surely running the new Wifi-qcom drivers (under menu wifi) whilst most of the available examples are for the older built-in driver (under menu wireless).
Loosely you should come out with something like (only as a minimal base config, you will notice that here ether4 is kept outside the bridge and given a static IP address, so that you have if needed an emergency access through ether4):
/interface bridge
add name=bridge
/interface wifi channel
add band=2ghz-ax disabled=no frequency=2462 name=ch-2ghz width=20mhz
add band=5ghz-ax disabled=no frequency=5600 name=ch-5ghz width=20/40mhz
/interface wifi security
add authentication-types=wpa2-psk disabled=no name=sec-test
/interface wifi configuration
add channel=ch-2ghz country=Germany disabled=no mode=ap name=conf-2ghz security=sec-test ssid=Test
add channel=ch-5ghz country=Germany disabled=no mode=ap name=conf-5ghz security=sec-test ssid=Test
/interface wifi
set [ find default-name=wifi1 ] configuration=conf-5ghz configuration.mode=ap
set [ find default-name=wifi2 ] configuration=conf-2ghz configuration.mode=ap
/ip dhcp-client
add interface=bridge
/interface bridge port
add bridge=bridge interface=ether1
add bridge=bridge interface=ether2
add bridge=bridge interface=ether3
add bridge=bridge interface=wifi1
add bridge=bridge interface=wifi2
/ip address
add address=192.168.88.1/24 interface=ether4 network=192.168.88.0
/system clock
set time-zone-name=Europe/Berlin
/system note
set show-at-login=no
Of course location/country, wifi channels, SSID and password need to be configured for your specific setup.
See also the help page:
https://help.mikrotik.com/docs/spaces/ROS/pages/224559120/WiFi