I have a bad feeling that may not be user-modifiable. However, you can do set text_meta_xpost = "Crossposts"; to change what it's called in the footer. Changing how it displays beyond that, at a first glance looks impossible (it's in the so-called metadata, which is all called from the backend and you can't do anything with it by tweaking layout code.)
Yeah, always on, though you can hide it with CSS. But you can't change its position in the entry or the format it uses for the crossposted URL or make it only display in posts longer than 300 words or whatever.
set text_meta_xpost = "Crossposts";to change what it's called in the footer. Changing how it displays beyond that, at a first glance looks impossible (it's in the so-called metadata, which is all called from the backend and you can't do anything with it by tweaking layout code.)