While we have options like "leave on server" and IMAP email servers there is not one grand correct answer here. Only a dozen methods that one gets to pick and choose which ever works for us. This is partly why many have moved to Web based email. That way it's always in sync.
I didn't offer any apps to do this sync because I'm sure you can find such.
There are also tomes about sync so I wonder if you read a few and came back with "why haven't they solved this yet so that everyone doesn't ask?"
As to multi-select https://www.youtube.com/watch?v=N_lmPHHy4hQ shows it may be up to the app. Me? I use a mouse+keyboard. i.e. that Microsoft keyboard+cover. http://www.dummies.com/how-to/content/select-multiple-items-with-a-fingertip-on-your-win.html writes "You can also lasso items using your finger or stylus. Draw a rectangle around your desired items, and Windows selects them for you.
After fiddling around with your fingers on the desktop for a few minutes, you'll see why a mouse or stylus can be invaluable for precision desktop operations."
Bob
I'm not sure if I'm on the correct forum, but here goes. I use Outlook 2013 on my laptop (Windows 7) and also on my Windows Surface tablet (Windows 8.1). Can I sync the two accounts so that if I read and reply to emails on one device it will be the same on the other? Also does anybody know why the Junk option on the ribbon is greyed out on the tablet?
One last question, which seems daft, is I can't fathom how to highlight a list on the tablet. On a laptop I would hold down the shift key and then use the down arrow, such as if I want to delete a load of emails.

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