For daily workflow we suggest you to use SSHFS. When you will be merging different branches you still need to know how to use VIM or Nano.
VIM
If you want to learn yourself how to use VIM into details please check http://vim.wikia.com/wiki/Tutorial. Here below are just basic commands which you need to know.
Open a file:
vim /path/to/the/file
Start editing - on your keyboard hit:
i
Stop editing - on your keyboard hit:
Esc
Save and quit - type:
:wq!
Nano
Nano has help always available at the bottom of the screen.
Open a file:
nano /path/to/the/file
You can start editing right away.
To close the editor hit:
Ctrl + X
For saving hit:
Y
For confirming the file name hit:
Enter