Indesign edit menu greyed out

You haven't selected anything, tha is why.

BUT... I can see you have a missing font (pink background on text) and overset (red +) everywhere...

Menus are context-specific. Without anything selected, those unavailable commands have nothing on which to operate. The ones that aren't disabled are available because, for instance, there's something on the clipboard available to paste, so the Paste command is active. If the clipboard was empty, Paste too would be unavailable.

I believe I can help here.

You need to select something to edit within your InDesign document before you can edit it. I suspect that if you select any element placed within your document and return to the Edit pull-down menu, you'll be able to see many more options for how you can edit that selected element.

For what it's worth, I don't know this because I'm Rhodes Scholar-bright about working with Adobe InDesign. I believe I quickly recognized your issue because I've screwed up that way before.

Hope this helps,

Randy

Seeing your screenshot, it seems that nothing is selected in your document, so I do not see anything unusual in the Edit menu. What do you try to do that does not work?