"Running Header" working across multiple indesign files within a book would allow a more modular approach to book production: common elements such as headers and footers can changed globally within a book, that shares some of its content i.e. individual indesign files, with another book but whose headers and footers must be different.

I've been waiting for a long time for the Document-font folder to be out of sync with the Indesign document. One should be able to determine the place itself.
If I have many Indesign Docs (in campaigns sometimes several hundred) I have to either install the fonts or just in any folder where an Indesign Doc is located in a document font folder.

A navigation pane(Section links) that allows quick navigation between document sections

It would be VERY USEFUL to have a variable for the total pages of the book that updates automatically.
Personally I tremendously need it !!

We do a lot of large format printing. In some cases we have large displays arranged in rows and columns. Unfortunately it's not possible to arrange pages of a spread in rows and columns like in Illustrator.
I could create a large page and freely arrange smaller pages inside the large page, but that's very limited, because all pages need to be part of the same spread—and spreads itself are limited to 10 pages.

I've been waiting for a long time for the Document-font folder to be out of sync with the Indesign document. One should be able to determine the place itself.
If I have many Indesign Docs (in campaigns sometimes several hundred) I have to either install the fonts or just in any folder where an Indesign Doc is located in a document font folder.

Need to duplicate not only one page at a time, but set the amount of copies,

and get it inserted right after the duplicating page not after the last page.

Need to remove guides and select (edit) similar objects, like container boxes, not only on a spread but on the whole document.

Need to select all boxes on the spread and insert the same image into all in one click.

Hey support,

is there a possibility to add a checkbox in InDesign under „Presettings“ to the point Dictionary (especially spelling) which allows the program to use the chosen spell-setting for all documents in a universal way?
Actually I have to check and set this spell-setting for each single document.

My proposition:
Under "Preferences" you could put a hook under "Dictionary", which takes over the dictionary for all documents without having to reset it again and again. When you open a new document, it takes over default spelling.

Thank you.

Allow users to password protect styles, master pages, ... in documents, preventing unwanted changes...

It would be very beneficial if there was an option to import and save .indt template files into the new document dialog box for easy access.

Similar or the same as the Adobe Stock templates feature that is available in the new document dialog box.

I often place multiple InDesign documents containing links into another one to create an overview of assets for our clients. This way I can jump directly to a specific document and make changes.
But if I directly modify a link of a linked document, I'm not able to update those remote links in my asset overview.

Dealing with multiple InDesign books comprising thousands of pages, I would need to find all objects located at (or, preferably, within) certain X/Y coordinates, so as to automatically reposition them. You've made halfway to this in CC2018, implementing the size properties in the find/replace dialog box.

Sometimes it would be handy if, instead of a warning message, ID would ask, if you would like to expand the layout area to prevent objects from being out of bound.

Add options for showing Master Page info to the long list of item in the Links Palette options. Should definitely include "Master Page Prefix" and "Master Page Name", might as well include "Based On" and "Number of pages" while you're at it.

At the moment, if a user creates several "New Document" Presets in the "New Document" window, they will be deleted if the User has to reset their InDesign preferences.

It would make more sense if the hard work that is put into creating New Document Presets was saved in a different system file (or clouded) so that
1-they don't get lost if resetting InDesign Preferences and
2-the Presets could be shared with other team members easily