create a rectangle first, click it and then the object you want to align with the rectangle while holding shift, on the right top you have alignment tools
Create logo
Make a circle
drop some character with some fancy font
add some curve and apply inside the character with color gradient
drop curves: (click - click and hold to tune the curve) x N times
trick: double the character and set the top one as mask
group them all and you'll have a logo
Auto layout
Nice for creating buttons that automatically scales with the inner text