The Height key in Gypsy (as in build 115)

The height figures shown in gypsy is the height of selection box and not the image itself. (Same is true for x and y axis)
To check this do this experiment with me.
On your mat first tap on an empty space . Set height to 2 inches and click the actual/real dial size button (the a underlined and striken/overlined). Then go to the keypad overlay and then select a single image - say an owl from gypsy wanderings. The selection box will fit pretty close to your image and height will be pretty accurate. Then without tapping on the mat (directly tap on keypad/keyboard overlay button at the bottom right) go and select a cupcake and pumpkin. Now they are grouped together. Go ahead and change the height of the whole group to 3 inches. Selection box still sits around the images. Fine. But then go ahead and select one image till it gets purple and move it. Tap once on the mat in a clear zone to deselect and then select. Selection box goes around all the images. Check the height in menu .It'll not be 3 inches. Count the grid boxes (each is an inch) of the whole selection box. It'll match the height in the menu. Tap and select just one image so that it turns purple (also note the selection box when you do this - it goes just around this image) and then check the height. This time it will show a different number and 3 inches.
So how does this affect us?
When we are designing  if we place each images individually and move them about (or even nudge it)  and then later decide you need all images in a different size,  so you come back and drag images and group them to change their height in one shot - well you'll be a little off in height. (The box goes around in all four direction touching the highest peaks of the image composite). You have to click on each image and change it's height individually