Adding icon to 'choose an action' ?

[Videodoctor]

Hi Everyone, Android newby here so go kindly on me.

 

I have a problem on a Lenovo 10.1 inch tablet. I use a seedbox via google chrome and within the web interface i can add torrents to the seedbox.When i click on choose file button, a box pops up that says 'choose an action'.(this is from android not chrome as i have tried numerous web browsers)  There are numerous icons like camera,camcorder,music,gallery,photos etc. My problem is the file i want to choose is in documents which isn't listed as an option. I also have a nexus 7 tablet and that gives me the option of 'documents' which i choose and can open the file i want but not on the lenovo.

 

My question is there any way of adding a 'documents' icon to the list of 'choose an action'?

 

I have googled the problem for hours and tried a few play store programs but non of them do what i want.

 

They all mention setting default permissions but this is not my problem.Adding an extra icon to the 'choose an option' list is all that i want.

 

Any help would be most appreciated.