It would be nice to be able to delay screen updates once youve got a render on screen when adjusting lighting on more than 1 light object. Once lighting changes have been modified then you could activate the render engine.
TCW V21, 2016-2018 PP, Animation Lab V5, Graficalc, TCMap, TurboPDF V2-V3 & Lightworks mostly
Windows 10 Home ed. i7 @ 3400Ghz, 16GB, Nvidia 960GTX 4GB ram, 2TB HD, 500GB SSD & 128GB SSD