Unity - Scripting API: EditorGUIUtility.systemCopyBuffer
Success!
Thank you for helping us improve the quality of Unity Documentation. Although we cannot accept all submissions, we do read each suggested change from our users and will make updates where applicable.
Submission failed
For some reason your suggested change could not be submitted. Please <a>try again</a> in a few minutes. And thank you for taking the time to help us improve the quality of Unity Documentation.
public static string systemCopyBuffer;
Description
The system copy buffer.
Use this to make Copy and Paste work for your own application. The
systemCopyBuffer captures any text that is selected on the machine. This does
not specifically have to be text that is selected in Unity. Reading and writing
systemCopyBuffer is possible.

Have more than 1 saved "copy" command.
Note: iOS and Android do not support this feature.