Checked into GIT after proof-reading the english, IgorB's revised Proxy.  I am glad he took on this challenge because the Proxy chapter just got thrown into the manual and added onto without much cohesiveness.  Based on the Latex ready version Andrea provided, I did make a number of changes to make it more readable but did not alter the contents.  I attempted to upload this to streamable.com so IgorB could review it, but it would not let me.  Maybe Andrea can check the chapter out of GIT and upload it somewhere?

A couple of questions:

1) Why is "Rescaled" not recommended for small computers?

2) What is meant by "a workaround is needed for that", referring to Plugin problem with "Rescaled"

3) Because of the very nice State table, I did delete the following as I thought it was redundant with the table:

"For both Cakewalk and Neophyte the icon for Proxy is the "Ps": the "P" is green when proxy is active and red when it is disabled; the "s" is white when the \texttt{Rescaled to project size (FFMPEG only)} is checked and red when unchecked. For all the other themes when Proxy is enabled and the \texttt{Rescaled to project size (FFMPEG only)} is checked a white "S" is shown, and a white "P" when unchecked; if Proxy is disabled the icon, "S" or "P", is grayed."

Let me know if I should put it back.

Also, if Andrea has time, could you try to create the Picture in s Picture that IgorB demonstrated in the Forum.  I was not successful and now @Jin has added more confusion.  It would be nice to put PiP in the manual too.