I recently started using TMUX and found it great i mean for some reason i'm getting addicted to it. But also found 2 itsy bitsy nuisance like

1) While in TMUX if i have a lengthy command and have to jump between words using ctrl+left or ctrl+right arrow key it dont work and i have to travel across character by character 

2) While using Vim in TMUX if i press Shift+down or Shift+up arrow key it doesn't work either ...

Any clues to solve them ....

Thanks in advance ...