I would like not use IPTC: rewrite every time 800MB-2GB TIFF file on NAS is long time.

I have in sidecar correctly inserted dc:description (Tools > Metadata > Edit XMP).
Question: Is it possible to view in fullscreen info the text from XMP sidecar dc:description?
This is possible for {IPTC:Caption}, but {XMP:something} don't works.
My workaround: insert dc:description in XMP sidecar companion file.
Copy/Paste this text in Description in "descript.ion" file.
Insert {Annotation} in fullscreen info.
But this is a wrong work.
