I agree, it is not pure black and white as to what is best, videos or text. But I can scan an A4 page of text and pick out the bits I need in seconds, while a video covering the same thing would be in the 10-20 minutes range or more, and it is impossible to scan it the same way you do a page of text. And text can easily be searched for keywords. In most cases videos simply eat up more of my precious time. I always hate when I search for help on a problem on google, and the only thing I find are links to videos. You often can't even tell if they are relevant to your problem before getting far into it.

But when it comes to demonstrating a complicated thing, videos can often be superior to see someone actually performing the task. And when seeing something visually, you don't need to understand the particular jargon either, you see what they do even if you didn't know what it was called.

Having the video divided up into chapter helps, but when creating a video it is often difficult to create good chapters. It is also a lot of extra work when creating the video, either up front because you need a much more detailed plan, or afterwards because you need to work through it and figure out how to divide it and what part really is. And people often come to the video looking for different aspects of things, which means that the chapter division that works perfectly for one doesn't provide a good organization for another (books have the same problem)

You can use the SYMDELNEAR command to do this.

Few more maps today, this time it is my entry.

In this case, it is probably simpler not bothering with the tool at all.

Just set the correct sheet, correct color, line width to 0 and fill to 0 on the status bar. Then do CONTOURSM on the text and the poly should go on the right sheet.

Another way that uses the drawing tool is to make a macro drawing tool that sets all the properties as above, and then calls CONTOURSM at the end of the macro, just leaving you to pick the text. I talk about macro tools in this blog article:

You can insert an image into your map using Draw -> Insert file. You can then either place this on a sheet below the one you draw on, or add a transparency effect to the sheet holding the image if you wish to have it as an overlay.

CC3+ has a command called TRACED than can construct an entity from an image automatically, but this works best if the image is black landmasses/transparent seas, and it will only be able to handle the outline, it can't really do inland contours and things like that (unless you are able to extract those manually as a separate image to be processed.)

Yes. There are a couple of ways to go about that. All the options do require some manual work to get a good end result, but getting the coastlines is quite simple (Although you do probably want to add additional detail to a zoomed in part of the world). See here for one way to do it