Introduction - the case of copy-paste: local <-> VM
On myDRE you cannot copy-paste text from or into a VM. As a Jupyter Lab user myself (Python) that heavily makes use on Google to find solutions, I do miss this copy-paste option. It would be so much quicker and less effort.
Why not allow copy-paste local <-> VM
The principle is that it should not be possible to copy information from a VM to a local machine and this follows the foundation laid in anDREa's
Security Manifesto. Due to technicallities in the current solution this rules out copy information from local machine to VM as well. In principle the latter, local to VM, is fully compliant with
anDREa's Security Manifesto.
Every disadvantage has its advantage
There are clever people that try to do things that have been never done before. Some do this for the good, some for the abuse. Recenly Gabriel Friedlander demonstrated a valid argument "...why you should NEVER copy paste commands directly into your terminal." You can try it yourself, it is quite unnerving to think what this can be exploited.
Though the demonstrated exploit is for Linux, creative minds never rest.