A multiple-clipboard app records text you copy or cut, and recalls this text when needed with a keystroke or from your menubar. It is indispensable when recruiting scattered text into a single page. Or when assembling several disjointed bits of text into a single sentence, typically with citations, such as this list of media articles featuring ICCS.
Right now I use Flycut ver 1.8.2 (DRM-free) which you can download here on Github (21 Dec 2016). There is a version on Apple Store, but it is older (1.5). I love the simple, clean interface. When I install it, I turn n a few options in preferences – start at login, no sticky bezels (on my laptop), ignore passwords, change the hotkey and increase saved clips to 50.
A multiple clipboard is critical. In the 90’s, I eventually settled on Script Software’s CopyPaste (OS8 to OSX) and switched to the free Jumpcut by 2006. When macOS Mojave complained about JumpCut, I discovered an update had existed for awhile, as Flycut.
Several options are available on AppStore which I have not tried. And other power apps such as Keyboard Maestro and the Alfred Powerpack include the capability for multiple clipboards.
What do friends on Windows or Unix use?