Hello, I need to move a lot of elemets in widget by 0.5, but “Multiple Values+0.5” don’t work, any solution, or I only can move elements separately?
In the Designer or run-time? Out of curiosity, why move things by half a pixel? Not sure what you’re trying to achieve but you can add elements to a container and move the container instead.
I have elemets with 75 pixel size, and middle of this element is 37.5, to align it with elements with 100 pixel size, I need 0,5 step:) "Not sure what you’re trying to achieve but you can add elements to a container and move the container instead. ", how do it? 
Consider using power of 2 for image size where possible. 128 or 64 is great, but 48 or 96 are also fine. Helps with scaling and maintaining quality, helps with compression. Pretty critical if you want a crisp looking menu.
Ok, I changed image size from 75x75 to 70x70, idk why i used half-pixels 
“Vertical Box” and “Horizontal Box” in widget really help place widgets nice.