Hack for editors who can't afford a second screen:. I used a an old Samsung galaxy tab e and connected it to my XPS 15 via twomon usb (pretty cool software). Now
Twomon SE - Use Your Android/iOS Device as a Second Monitor - TechWalls
Download Twomon for Mac | MacUpdate
TwomonUSB|Easy&Light
태블릿을 확장 모니터로 : Twomon USB : 네이버 블로그
Twomon SE - Portable Display - Apps on Google Play
TwomonAir - Dualmonitor,remote - Apps on Google Play