Trí Trần Vĩnh

Please help !

Hi !
How can I add 1 Widget to the Templates page.
I want to display an ad below the content of the Templates page.
Please help ! Thanks

I have been using this Add-on !
But every time I create new Downloads, I have to do Update All in Settings for Page Template again!
I want it to be my own Page Template: every time I create a new Download

Please guide me to update 5.0.3 and help the download link work.
Currently I have an error of the image of the file icon. And at the interface additional download packages are faulty. You can see in the attached image!