Hello!

if you go to Global Configuration > K2 > Social you will see this screen:





I would like to add an Facebook "Share" button with som HTML code. So my question is: which code can I insert in the blank field to optain that???

Hi. This is there to allow you use a service like www.sharethis.com/ . If you just want the Facebook share button there is no need to use that field. The Facebook share button is built in K2 ( example demo.getk2.org/item ) .