@Timothy788
I think you are referring to the "Climate Crisis Resiliece Duty".
Which is explained in a "free tax guide" (pdf), to be found in this article:
Responsible hosting in Greece:
https://www.airbnb.com/help/article/1246
Useally taxes are added in the Tax section of the listing.
("professional hosting tools" must be active in your account)
Consult help-file for more information on this (or ask here)