How to configure the X-touch mini with updated SIMVARs FBW A320NX?

Hi, if anyone could help in updating to the correct simvar for x-touch mini in order to change the SPD setting?

current =

“event_up”: “AP_SPD_VAR_INC”,
“event_down”: “AP_SPD_VAR_DEC”,

From the FBW docs, I think this is the one to use now -

but not sure how to enter that in to the config?