DTP Utils has a custom plugin to do paragraph borders and boxes, Word-style:

“ParagraphBorder plugin allows InDesign users mark paragraph with left/right/top/bottom lines and fill. All options are native paragraph attributes (new panel in “Paragraph Style” dialog).”

Andreas, I guess any topic can be discussed in here, as this is, after all, “An informal place to hang out and talk about Pub-lishing” :D

Here's a tip:

Call up the Keyboard Shortcut Dialog, then click the Show Set button. It creates a temporary plain text file, with all of your current keyboard mappings, and automatically open it in your system's default plain text editor. You can then use the Search function (usually Cmd+F or Ctrl+F) to locate the required function by name — they are listed by “Product area”, which is the same one as in the drop-down list.

It's so convenient it's not even worth the trouble to save this document — just call it up again if you want to modify another key.

It never ceases to amaze me how many functions InDesign actually has. On my system, this file has 1,565 lines! No wonder they had to stuff some of the functions into not-really-obvious places.

(FYI, 'cause David's solution is easier ;) ) Using GREP styles, you would use this:

^.+?[-:]

or, if this 'hyphen' is actually an en-dash as in your post, replace – with the GREP code for an en:

^.+?[~=:]

It's quite simple — for a GREP match, that is. ^ is “Start of Paragraph” (and — ugh! — also Start of a line after a soft line break), .+? is “any character, as least as possible (indicated by the question mark; without, it'd be “as often as possible”), and the […] stuff is a list of “one of the characters in this list”. Note: most “special” characters inside an OR-list loose their magic properties — a period or question mark is just that — but a few oddballs have to be escaped to work. If you don't escape the single hyphen, it could be interpreted as a character range instead (as in “a-z”), and you will be wondering forever what you did wrong.

Sure — that's even better.

Again, using GREP, replace

(?<=r)r(.+)

and put this in the Replace With field, along with the new Paragraph Style name in the Formatting field:

$0

Well, technically you can add more Page Number codes on each page, but it won't help because they'd all be the same number (the actual page number, of which there is only one per page).

You could try a few different things; one is using a numbered list, although you cannot “define” it on your Master Page — you'd have to draw them on each page proper.

A better approach would be to create your main document as regular pages, size A6 (this is not in ID's standard list; just divide width and height of your A4 by 2), export as PDF, then place each set of 4 pages into an A4 document.

Required question: why do you need this? It's not for regular book production, which is what ID was meant to do.

INX = InDesign Interchange.

Exporting to an INX, then opening that again (use the regular “Open” command), clears all grit that may have accumulated in unused corners of your file, and may make your file start behaving correctly again.

Make sure you keep a copy of your original (“bad”) file in case something goes awry. The INX Save/Restore trajectory is quite safe, but as always, you should keep in mind anything can go wrong.

(Afterthought) What kind of image is that, on the left hand page? Perhaps you should open it with the program you created it with, and save again. You know, just to make sure that's not the cause.

If it's a JPEG, open with Photoshop and save as TIFF, then use that version instead.

As in all previous versions of InDesign, there is no (etc) and you can only save one version down. Needless to say, even this will silently remove all CS5-only features.

To save down, choose Export, then select InDesign Markup Language (IDML). To successfully open the file in CS4, this needs to be fully updated, because Adobe tinkered a bit with the IDML-export after releasing CS5.