About buffer size setting

Hello Everyone!
About tune.bufsize 16384 this setting.
This option can be set in each frontend?
because I need Lua to get post data big.

frontend http-get
bind :8000
mode http
bufsize 8192

frontend http-post
bind :8001
mode http
#buffer size 10MB
bufsize 10485760
option http-buffer-request

No, this is a global setting, in can only be set in the global section.