human
How do I copy and paste text from one window to another?
assistant
Use Ditto
1. Go to https://ditto-cp.sourceforge.io/.
2. Click to download the appropriate version of Ditto.  
3. Double-click the installed file (not in the app store).
4. Run Ditto.
5. Highlight the text you want to copy and press Ctrl + C.
6. Open Ditto.
7. Double-click a pasted item in Ditto to paste it in your previous window.