#define DIALOG_TUTORIALS (5) // Yes, only 1 dialog. Also make sure the dialog id(which is 5 in this case) is unique.

enum tInfo // Creating an enumerator for the array to differentiate between the title(title of the dialog) and the content(the content of the dialog).
{
    title[64], // Title - 64 Characters MAX
    content[256] // Content - 256 Characters MAX
}

new tData[][tInfo] = // Creating a 2-D array for our dialog. The first cell is the number of tutorials, the second is the title & content which has been declared earlier on the enumerator.
{
    // {title[], content[]} -- The first parameter is the title of the dialog. The second is the main content. Also make sure not to put comma not the last one.
    {"Job", "This is a job which is very unique than any other job ;)"},
    {"Skills", "Sometimes skills matter when quality does not there"},
    {"Manager", "Loren Ipsum is sometimes a good text generator but me is very good."}
};

new tutorialindex[MAX_PLAYERS]; //It will control the number of tutorial that should shown the player.

tutorialindex[playerid] = 0; // Resetting the variable which controls the tutorial index.
ShowPlayerDialog(playerid, DIALOG_TUTORIALS, DIALOG_STYLE_MSGBOX, tData[0][title], tData[0][content], "Previous", "Next"); // Show the dialog of the first tutorial with 2 buttons in message box style.

switch(dialogid) // Switching the dialogid
    {
        case DIALOG_TUTORIALS: // If DIALOG_TUTORIALS(which is our dialog) got responded
        {
            if(response) // If previous button has been clicked
            {
                if(tutorialindex[playerid] > 0) tutorialindex[playerid]--; // This checks if the tutorial index is greater than 0 then it will decrement the tutorial index because when previous button has been click, we want player to see the pervious tutorial.
                else tutorialindex[playerid] = 0; // If it's less than 0 then we will set the tutorial index to 0 because the value cannot be negative as it starts from 0.
                ShowPlayerDialog(playerid, DIALOG_TUTORIALS, DIALOG_STYLE_MSGBOX, tData[tutorialindex[playerid]][title], tData[tutorialindex[playerid]][content], "Previous", "Next"); // Then he will be shown the dialog with the previous tutorial as you can see on the index.
            }
            else // If next button has been clicked
            {
                if(tutorialindex[playerid] >= (sizeof(tData))-1) //This checks to see if the tutorial index is greater or equals to the maxmium number of tutorials which means that the player has finished watching all the tutorials.
                {
                    //After player finish the tutorial, the code here will run.
                }
                else //If he is not yet finish the tutorial
                {
                    tutorialindex[playerid]++; // Increase their tutorial index.
                    ShowPlayerDialog(playerid, DIALOG_TUTORIALS, DIALOG_STYLE_MSGBOX, tData[tutorialindex[playerid]][title], tData[tutorialindex[playerid]][content], "Previous", "Next"); // Then he will be shown the dialog with the next tutorial as you can see on the index.
                }
            }
        }
    }