New Outlook functions

Hi,

i am trying the new outlook and want to ask for some features from old one, which i could not find right now. I just would like to know, if I can not find them, or if they are really not implemented yet:

1. change the senders e-mail ; in old outlook i could add another e-mail adress as sender. For example, write new e-mail, on the buttom "From:" you can click and choose "New E-Mail Adress..." or something like that

2. Offline saving from data is not implemented yet, as far as i read the info sites? Right now, my email accounts are loading every start everything new

3. All my email accounts, except the standard account, are collapsed from start up. i have to open them every start?