Fortiswitch 124F-POE v 7.6.0 // ¿Can the MTU be modified on an interface?

Hi Team,

I need to know if it is possible to change the MTU on the ports of a Fortiswitch, I have been reviewing the config, and the only thing it allows me to change, is the MTU in:

HOSTNAME # conf system interface

HOSTNAME (interface) # edit internal

HOSTNAME (internal) # set mtu-override enable

HOSTNAME (internal) # set mtu 1600

HOSTNAME # config switch global

HOSTNAME (global) # set max-frame-size
<integer> frame size between 68 and 10000

If I try it on the interfaces, I don't have the option to modify the MTU.

HOSTNAME # config switch interface

HOSTNAME (interface) # edit port1

HOSTNAME (port1) # get
name : port1
description : (null)
type : physical
native-vlan : 1
allowed-vlans :
untagged-vlans :
discard-mode : none
dhcp-snooping : untrusted
dhcp-snoop-learning-limit-check: disable
dhcp-snoop-option82-trust: disable
arp-inspection-trust: untrusted
dhcp-snoop-option82-override:
stp-state : enabled
stp-loop-protection : disabled
stp-root-guard : disabled
stp-bpdu-guard : disabled
loop-guard : disabled
edge-port : enabled
rpvst-port : disabled
auto-discovery-fortilink-packet-interval: 5
igmp-snooping-flood-reports: disable
mcast-snooping-flood-traffic: disable
packet-sampler : disabled
sflow-counter-interval: 0
snmp-index : 1
port-security:
port-security-mode : none
vlan-mapping:
trust-dot1p-map :
trust-ip-dscp-map :
default-cos : 0
qos-policy : default
learning-limit : 0
sticky-mac : disable
log-mac-event : disable
nac : disable
force-egr-prio-tag : disable

HOSTNAME (port1) #

Thanks,

Juanmi