Where to find edit exif/iptc data in Lightroom Classic (desktop) for one single picture?

How do i edit exif/iptc data of one single picture in Lightroom Classic (on desktop)? For two or more pictures i select them in Library Mode, choose the Sync metadata function and fill-in the exif/iptc data for tthese pictures, but when i want to edit one single picture, i can not get the same form to fill-in. Where did Adobe hide it? I don't see...

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