Configure MTU on CSS326-24G-2S+RM

Hey,

i wanted to configure the MTU on my CSS326-24G-2S+RM - but could not find the relevant setting in the web UI.
Since i cannot SSH into the switch, how can i configure the MTU?

Just got the response from the support:

The CSS326-24G-2S+RM does not have configurable MTU, it is set to 10218 bytes for every port.