Text   = "Comment for post";
    PostID = FunctionParameters["Bitrix24_PostID"];
    URL    = FunctionParameters["Bitrix24_URL"];

    Result = OPI_Bitrix24.AddPostComment(URL, PostID, Text);

    Text  = "Another comment";
    URL   = FunctionParameters["Bitrix24_Domain"];
    Token = FunctionParameters["Bitrix24_Token"];

    Result = OPI_Bitrix24.AddPostComment(URL, PostID, Text, Token);