Hi whoever knows the answers,I have several questions... after going through the analytics api 1.4 documentation, i realized it doesn't help answer any of the following:1.) how do i build multi-segment api requests-i.e. device type = mobile, not tablet, some other condition - without creating a new segment in the dashboard2.) how do i build multi-metric api requests-i.e. the documentation says metric[ {id: value} ]... cool but why does the following work"metrics":[{"id":"uniquevisitors","element":"evar13","selected":["/some-website-page.html"]}]my point is, how do i add queries like this and what are all the properties and argument types3.) how do i build multi-dimension api requests-i.e a target activity (let's say experience) that has a page with two or three variants, how do i correctly built that type of request and what are all the properties and settings that i can use4.) why do the numbers in the api not match the gui in analytics, let's say for visitors or unique visitors, how