Down Arrow on tablet screen keyboard ?

[#1]

Does anyone know if there is an app that will put a down arrow on tablet screen keyboard?  for page up /page down operations?

[#2]

It seems that nobody does !....
Never mind....  ( original query was for someone who does not have a keyboard ).... . I have a keyboard that has it... !

[#3]

I use Hackers Keyboard for android.

Edit: I found a pic.

[#4]

Thanks for that... and the pic... have googled it, and will pass the info on to my friend in Japan ........

[#5]

Swiftkey also has arrow keys but depending on what device it is running on might be in a 'secondary' keyboard screen (i.e. you have to press another key to reach them as you sometimes have to do with symbols etc).