xander wrote:First, please use the edit button. My first inclination would have been to quote your post, then splice in answers to your questions. However, you split your ideas over three different posts, making that difficult.
Mia culpa. I was in the wrong space to be posting. Flipping back and forth between Darwinia and the forum and having other thoughts occur to me randomly. The "Post A Reply" button was big and easy to see and use. I'll take more care in the future...

xander wrote:As to your questions:
1) To rotate the camera, right-click-and-drag (as I recall).
Thanks. I'll give that a try tomorrow when I'm back in front of my computer!
xander wrote:2) The SafeArea should needs to be marked as global. If it is not global, then the mission objective will never register as completed.
Ah, that's the missing piece. Thank you.
xander wrote:3) It has honestly been too long since I actively modded Darwinia for me to be able to answer that question. However, if an enemy reprogramming a control tower consistently causes crashes, then that is obviously a modding no-no. Remember that everything that anyone knows about modding (aside from a very few people) was learned through trial and error. Basically, if you discover that something doesn't work, you have done the same thing that all the rest of us did. We probably don't know any better than you.
That being said, the source code for Darwinia has been released, so, theoretically, there are people that can get a better idea. I'm just not sure that more than a handful of people have bothered.
Okay. I'll play around with it a little bit more. Maybe it only crashes if an enemy engineer tries to reprogram a control tower that is set as friendly with particular settings. Enemy engineers are referred to in the modding guide, so I was surprised when I was able to crash the game with such a simple use of one. So, we'll see.
As to the process, trial and error I can do. No problem. Just asking the question to see if anyone else had any insights to save me some trouble. As they say, "the best mistakes to learn from are the mistakes made by someone else."
xander wrote:4) main.dat is a .rar archive. Open it with any archive utility that can handle .rar files. You may need to change the extension to .rar. If you extract main.dat, a new folder called data/ should be created. Darwinia will read from that folder, and files there will override main.dat. So, be careful making changes.
xander
Oh, okay, an .rar archive. I tried renaming it .zip and trying to extract it, but that didn't work. So, again, I'll check this out when I get back to my computer tomorrow.
As a final note, I do want to thank you, Xander. We got off to a bumpy start in our interactions here on this forum (in no small part due to my own missteps), but you have been friendly and helpful to me since then. So, again, thank you.