Append access point's MAC address in Mikrotik Redirecting Captive portal URL

Hello Team,

Can you please guide to append access point’s MAC address in Mikrotik Redirecting Captive portal URL.

Uploaded Captive portal URL - “http://192.168.1.2:5201/#/portal?name=mikrotik

Required redirecting URl= “http://192.168.24.9:5201/#/portal?name=mikrotik&mac=00:11:22:33:44:55

this MAC (mac=00:11:22:33:44:55) is access point’s MAC address

Kindly please guide how we can append this MAC address