How can I control a list of applications in ?Share? pop up in iphone 6 built in browser?

[iMore Question]

I want fo example viber and whatsapp in the list.

 

[AgentHeracles]

When you get to the share sheet, scroll to the right until you see an option for More with three dots over it. Click on the More Button and tap the button to turn whichever app you want activated. To adjust priority - put your finger on the 3-line at the far right and drag to position them however you want. When you are finished - press done.
This will only work for apps that are updated to take advantage of this.