How i will upload Script graphics on codecanyon

I have uploaded a Script to code canyon , and i have uploaded its screenshots as well but the graphics which is Explain the script (below inline preview) , there is no option to upload these graphics ,
i need help , every Experienced author will know the answer
Thanks

You have to create HTML containing any content that you want in the description

OK got it , Thanks @charlie4282 , for reply to my question