Iubenda and Shopify, is there anyone who managed to make it work?

[Eurostep1]

Hi, we have to understand something about cookies . we have install cookie bar of Iubenda following correctly installation guide. Now we have a problem , how can set our purpose of cookies , for example we want to set Analytics (after anonimyzed IP) as strictly neccessary ? because in Shopify we can only add UA code into preferences . And like for analytics we'll want to personalize the others , like Facebook, or script from app installed.

we cannot intervene into code of analytics to set new script class and data-purpose

because code generate by shopify after inserted a UA code into preference

and if I inject code of analytics in theme liquid , how can monitoring a checkout ? because I can change checkout only in shopify plus .

PS : no Iubenda app in Shopify store

thanks