Keyboard and mouse - not the most convenient tools for video editing. A decent mounting controller with Jog / Shuttle costs from a few hundred to several thousand dollars. The application for iPad / iPhone CTRL + console , the collection of funds for the creation of which is going on Kickstarter, will allow using the touchscreen of the tablet or phone as such a controller, and not only that. In addition to video editing, CTRL + console will include controls for color correction and faders for audio.
The application communicates with a computer running Mac OS or Windows via WiFi. While support is declared for two editing programs - Final Cut Pro and Adobe Premiere. In addition to directly manipulating the controls on the tablet screen, the CTRL + console will be controlled by gestures.