There should be a shortcut to copy the code of a previous exercise

[mquinson]

From @mquinson on March 16, 2015 10:10

Several exercises suggest the user to copy his/her code from a previous exercise to modify it further. It would be better to have a little button or menu entry or link in the text or whatever to actually do that copy. That would prevent the user from breaking their work flow.

Copied from original issue: BuggleInc/PLM#432