IgorB: we do not quite understand your email, but here is our current understanding.
....
The final sentence: "...compositions. They can not be proxied" (that is clips)
For a regular clip --- if you proxy your session, the clip does not get proxied at all.
For a clip that is created and then nested --- it does not actually proxy the clip. It proxied the nested EDL which was created from the clip when you did the nesting which ended up in the Media folder. BUT if you try to drag the nested EDL from the Proxy folder, you can not put it on the timeline or in the Viewer to play -- thus the statement that clips can not be proxied.
Proxies are created in Cinelerra folder (where there is "cin" file)
instead of the clip folder as usual (with Cin TAR version. With Package
version I don't know).
What is the Cinelerra folder? Is that the same as the Media folder?
Is it right that proxies are created in Cinelerra folder?
Proxies are only created in the Proxy folder as far as we can tell with the "proxy" as part of the name.
Is there any reasons they are not created in the clip folder?
Proxies are not created in the clip folder, if they were to proxy, because all files with the "proxy" in their name are in the Proxy folder.
I am not sure if now I am more confused than I was before starting this message! but I had gg's help.