Use a variable to add the costs of premium features that are selected or deselected using an iOS switch component. See a video of how to do this step-by-step in this webinar: https://support.proto.io/hc/en-us/articles/115001585411-Model-advanced-prototypes-that-use-variables-part-II TAGS: variables variable math addition switch switches fire an items event

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

Autoscroll carousel example

Tik Tok project (Part 1) The videos in the project have been downloaded from: https://www.pexels.com/videos/ https://www.pexels.com/video/close-up-of-wheat-in-field-9917770/ https://www.pexels.com/video/moving-pages-of-books-8994820/ https://www.pexels.com/video/woman-with-freckles-on-her-face-looking-at-the-camera-8055998/ https://www.pexels.com/video/portrait-of-a-beautiful-young-woman-8056090/

Basic menu using a moving focus model for TV apps such as Hulu, Youtube etc. Key presses are used to map interactions which would be mapped to physical remote controls for live demos. Note: Must click the canvas to enable key presses, this seems to be a common restriction with most prototyping tools when building key press focus interaction models.