Hopefully someone will upload some footage to Youtube.
The E190 is now parked on stand 21 but according to sources they wanted to try and fit it on stands 1-4 but it didn't fit due to low wing and wind/tip clearance. My guess is it will park on the normal stands but TIPO style. (Taxi In - Push Out)
About the dimensions; E190/A318 and ATR72-500.
Although the Embraer 190 is almost 5 meters longer, it's wingspan is almost 5 meters shorter. And not as tall as the A318.
Embraer 190
External Dimensions
Wingspan 28.72m
Length Overall 36.24m
Height Overall 10.57m
Horizontal Stabilizer Span 12.08m
A318
Dimensions
Overall length
31.45 m.
Height
12.56 m.
Wingspan (geometric)
34.10 m.
ATR 72-500
Dimensions
Dimensions
Overall length 27,166 m
Overall height 7,650 m
Wing span 27,050 m