Sounds like an interesting idea. While I have no idea if something like this will be made for CC4 or not, you can already today get access to all the data needed, so that should be able to be done with an add-on, meaning even if it isn't put into CC4 by default, it should be possible to write for anyone with a bit of programming experience and put in without PF having to add anything to pave the way.

Maybe not exactly the way you describe, but you can add large amount of text to your map using map notes. These don't display in-map, but in a separate window, but you can make hotspots to click to show the note you want, and each map note can have up to 8000 characters. Not quite unlimited, but room for quite a bit of text.

I do this frequently for atlas maps, for example, try downloading and opening the Southern Scar map from the atlas, and hit the Description link in the sidebar, and you'll see a description of the map appear. This is a standard hotspot that can be placed anywhere in a map.

Some more information in this blog article:

Kind of. The List command in CC3+ gives a lot of detailed information about entities, and it can be exported to a text file that shouldn't bee too hard to parse programmatically.

If that does not cover the need, it is also possible to write your own extension for CC3+ that can walk the entity list and generate whatever output you need, but of course, that does require a bit of programming.

If you name them sensibly, you can achieve the same (But you do need to use a command, not the GUI). Say you have a bunch of layers with different kinds of GM secrets, then you can simply name them GM Secret Doors, GM Secret Traps, GM Secret Secrets, etc. Now, you can toggle the visibility of all of them with TOGLF GM*, with the companion commands SHOWF and HIDEF. ('F' here means 'Filter').

Sorry Don, but you seems to have looked at the wrong entity here, it is only the map title that is problematic.

The reason why you can't change the text color of the title is that it isn't a simple text entity, it is actually a symbol. One of the feature of symbols in CC3+ is that they can include user, provided text. In this case, the symbol only contains text, nothing else, but it is still a symbol.

Now, what is happening when you try to change the color is that you change the color of the symbol itself. But there are no part of the symbol that is set up to react to color changes. A symbol is made up from multiple entities, and each of these have their own color configured, they don't inherit the color from the symbol itself.

So, how to change it? There are two ways, either edit the symbol definition itself, or simply explode the symbol. Exploding a symbol "undefines" it as a symbol, and just leaves behind the individual parts that made up the symbol, in this case the single text entity and nothing else. So just use :CC2EXPLODE: on the title first, and after doing that, you should be able to change the color just as for any text. It is still not a regular text entity, it is a special kind of entity called a text attribute, but for most cases that doesn't matter.