how to open existing project from other m/c

How to open existing project from other user's machine and how to save the changes.
how to run the jobs daily please tell me in detail

ANS:
u can open others projects from ur machines by check out that project( by using AIR commands) then u can get the latest version of that project.
after that u can modify or not that version and then check in that project from ur machine.
u can run the graphs by using job scheduling using cron tab on daily basis.
ok naa i think this is right answer
any one write the correct answer if this is wrong.