An HTML input field generally accepts certain hotkeys, like Ctrl+A to select all text, Ctrl+C to copy, and Ctrl+V to paste. These hotkeys are not functioning in the property fields of the EasyEDA editor. This means that when I want to copy-paste something to another field, I am restricted to mouse drags and right-click context menus. This makes the interface harder & slower to use. Please allow us to use hotkeys to copy/paste values in property fields. As an extension to this, it would be amazing if EasyEDA could support the feature of [Blender](https://www.blender.org/), where one only has to hover over an input field and press Ctrl+C to copy it. Hovering over an input field and pressing Ctrl+V pastes the value. By not having to click the field and then select the text, this makes the workflow even faster.