Hi Jagyouare -
If you want to turn lacp off on only interface A2, you can do it as follows:
(config)# int a2
(eth-A2)# no lacp
If you want to turn it off for a range of interfaces, such as A1 through B4, you can do:
(config)# int a1-b4
(eth-A1-A24,B1-B4)# no lacp
In either case, you can do a "show run" to verify that it did what you intended.
Regards,
Ralph