Did anyone managed to have a, for instance, "Chose your country" or "Select" option in dropdown extra field, that doesn´t show at front ?

 

I mean K2 would not treat "Select" as populated extra field.

( i already have tweak to hide empty extra fields)

Whow...that was very easy actually.

Mysql --> jos_k2_extra_fields ---- "your extra dropdown field".

 

and change first value to "null". In my case it was:

{"name":"

---

Select

---

","value":null,"target":null}