Few questions

[LokotoAi]

1. In guide it use "," separator but google sheets only accepts ";"
   

2. I can't add headers by this way
   
   I get 403 error but when I do the same request via reqbin.com - it goes right

3. In USAGE section "=IMPORTJSONAPI("https://test.com/api", "$..Title", "@", 1)"
   But when I try to add another arguments I get this
   

[dreaded369]

use commas.