[Tails-dev] New User questions

Hello i will be soon new user of Tails. i hope its secure to use it.

i have some questions .

FIRST. how can i SSH into remote VPS over TorSocks5 ? in Windows i use
Putty very small SSH client and it can be configured with proxy.

SECOND. how can i Trasfer files into remote VPS over TorSocks5 ? in
windows i use FileZilla small SFTP client and it can be configured with
proxy.

so exist similar softwares in Tails? if not can in next version of 2march
implement this 2small but very good Tools !

last question: how can i create persistent folder ?
if i have USB of 22gb and Tails use only 2GB can i use some space to save
files ?