Analytics - Report Builder - email field syntax

When we try to schedule or to send a report using report builder (but usually with all the Adobe analytics) there is always problem with the syntax we have to use. First of all you should state which syntax you require (just with a simple e little tooltip if you prefer).

Last, with the new release of report builder, it seems to me you require to remove any blank space between each email, but when you show the setting you add the space...