Snap to pixel
While moving objects around, they are often placed on subpixels (not sure if that's the term but X = 280.19; Y = 704.83). That means I have to go in and manually fix in all the numbers before I start adding triggers because I'd like to have triggers detect on whole pixels. If there was a 'snap to pixel' button, it'd take that manual step of rounding up/down the numbers myself every time I position something.
Similar to Adobe XD functionality, a checkbox for containers or shapes that makes everything underneath it blurred.
Being able to nest components inside components, allowing creation of more complex components