Running vim inside tmux. How do I get shift and the up/down arrows to work as page up/down? [closed]

When I use vim on a remote machine I can use the following keys:

Up arrow = up one lineDown arrow = down one lineRight shift + up arrow = up one pageRight shift + down arrow = down one page.

I'm really used to these key combinations.

I've been trying tmux lately but have found that

Right shift + Up/down arrow doesn't page up and down inside vim, when using tmux.

I've tried enable vi keys. I've tried unbinding the above keys in my tmux conf. I've also tried binding those keys to page up/down a actions.

Any ideas on how to make this work?