Here is an example of a scrollable data table with vertical and horizontal scroll and a fixed header. Data design: https://www.sketchappsources.com/free-source/3706-datatable-with-horizontal-scroll-sketch-freebie-resource.html

Tinder UI cards

An extended collection of fully animatable UI libraries like triangles, stars, arrows and more, let you bring your idea to life all within Proto.io.

A very basic Calendar example project using Containers a few states and 1 variable to track the year.

Using simple 'Animate Item' and 'Show/Hide' interactions to have the boxes disappear and realign accordingly. Can be used as a base on how you can build notifications or lists to realign themselves.

Curved Slider controlling lamp brightness. Designs taken from: https://www.sketchappsources.com/free-source/3592-smart-lamp-view-sketch-freebie-resource.html

screen and screen state change using variables

State change based on the position of draggable objects

A reverse timer using the handle to designate where the timer begins its countdown.