ZyXel GS1900-8 : How can i configure LAG?


I recently bought ZyXel GS1900-8 switch and flashed openwrt 22.03-rc4 on same.

My expected setup :
ISP <--> Router (Openwrt Linksys) <--> Switch (ZyXel) <--> RHEL (LACP, layer2 xmit)

I am trying to configure LAG/LACP and make it work using OpenWRT, is that possible at switch level in openwrt ?

I am well versed with configuration at OS end, but this is my first switch ever and i would like to know how can i create LAG on switch with openwrt. If someone has done it, could you please assist ?

Thanks in advance.