Save to a removable medium

    This button allows you to save the document to a removable medium :  cd rom, usb key etc...
    When you push this button, you are asked to give the path  of the medium e.g. /mnt/removable or
/Users/Volumes/usb_key depending on your medium and your O.S.. This path is kept so the next time it will not be necessary to type it again.
    Nevertheless if you want to change it you use the menu command File/Saving path and you type the path you want.