So this would be the Better Day At Blackrock, presumably ?

Impressed that you've managed to "force" @Loopysue to reveal her hidden treasure in the City Cliffs Annual @Elfling!

I understand what you mean about how parts of the Tome and help files are sometimes written. It can be frustrating when you know what you want to do in CC3+, but can't quickly find the information on how to do it. It's often a matter of experience, trial and error (lots of the latter, in my case...), and taking time to watch through the video tutorials (the Joe Sweeney ones are what most helped me when I was trying to first get to grips with the program some years ago, though there are plenty more now by other folks too), and/or reading the written tutorials, if that's more suitable for you.

Sue's right I think in suggesting the Symbols Along command might work nicely for your palisade fencing. You may already have access to suitable symbols from what you have installed for CC3+ that will let you do this without needing to create fresh ones too.

You might want to think about the Symbols in Area command as well, which allows you to fill a polygon of whatever size and shape you wish with your selected symbols - a narrow strip polygon could work for things like hedge-lines made up of individual bush and tree symbols, for instance.

I suppose I'm just more used to having worked with real scrolls down the years, than how cartographer's have opted to draw them!

That's 497 maps now, according to the Downloads page in the Atlas!

Getting lighting to look right and yet still leave the map usable is a tricky balance from my limited experience. In an environment such as you've drawn so far, the lighting would be likely good and fairly uniform flat, or largely none at all, for each particular area, so it may be worth asking how many lighting effects you really need before embarking on setting it all up.