I'm glad I'm not the only one going crazy about this :-)
In 99% of my use cases, the duplicated page is not required at the end of a document

Option + Command Drag to add right below or above

I have an InDesign doc with over 150 pages in. I need to duplicate each page, but want to have the duplicate below the original page. Do I have to alt drag each page to make sure it will be duplicated under the correct page? That is crazy if I do. Why can't there just be a shortcut to duplicate a page and it appear below the original and not at the end of the document?

YES. Please add this feature. So annoying to have to drag the page up and it's a time waster.

Please please add this feature

If you need to print or export the same page on both sides of a sheet, just set the output to "x,x" and you'll get the same page twice.

ctrl+alt dragging does appear to work in CC2020. Just make sure you get it in the right spot for the line to appear next to the page.

Still, there should definitely be a 'Duplicate to Next' option. Really this should be the default option, and 'Duplicate to End' should be secondary.

THIS DRIVES ME ABSOLUTELY BONKERS. Who would want their duplicate page to disappear 120 pages away? At least give us a toggle option in settings.. - 'Duplicate to Next'

agreed, SO FRUSTRATING, if I'm copying a spread, why would I want it at the end of the document!?

It does work, you have to hover,

option/alt drag the page, then hover to the left side of a page and a line will appear,

Why I this happening I've been using indesign since day one since cc 2018 its been removed thought it was a bug but now in cc 2019 why?

@Jason — That doesn't work for me in ID 14.0.1. It sticks the new page at the end of doc every time

option/alt drag the page in the pages panel. Simple.

Yes 9 times out of 10 I want to duplicate a page to [the next page] rather than [to the end of document]. I'm constantly having to duplicate a page, scroll all the way down to the bottom, then drag/move the new page all the way back up to where I wanted it.

Note that you can Option/Alt-drag the page and drop it where you want (in the Pages panel).

In previous iterations of InDesign, you could do this by holding down alt on the pages panel and dragging the duplicated page(s) to a new location in the document. Unfortunately, this feature seems to be broken since updating to InDesign 14.0...

Agree! I have to modify multiple user manuals and when duplicating a page of similar content I always forget it jumps to the very end, and I'm working on 50+ page documents so it gets very frustrating. I hope there will be a solution to just duplicate the page right after the one that was duplicated (like in PowerPoint).

Pros for the Developers - very easy to implement. You will just have to change the title, captions, and disable the limitation of copying pages into the current document, without deleting them in the original position.

Right now we are even able to duplicate pages via Move page function, but only across documents, why???

The pages, duplicated through "duplicate page menu" are placed after the last page, which is usually the last page of the cover. They aren't needed there. Frankly speaking they are needed elsewhere. The duplicated spread should provide a dialog similar to moving page with the same options. That why it is user friendly to merge those options in one dialog.

Even the current implementation of the move dialog would work if the option to keep the moved pages was awailable for the current document. I don't understand why it was blended out in the first place.

The dialog must be prepopulated with the currently selected range pages. Aswell as destination for the current document should be by default the next page after the selected range.

We could even leave the duplicate option on it's place if there is any poor soul who would like to keep using it.

See the attachment.

Completely agree need this badly. Please add the option for that.