solver

The walls need to be close, like overlapping. Yes, just move the wall.

You can get walls close, then look in the Edit Toolbar for this tool while a wall is selected.

Move the walls by a foot?

Look under the 3D menu. You can customize your toolbars and place buttons like this where you want. I've never known of that not working, but it must be done. Have you tried auto building the roof? It won't build correctly, but should be a good start. That's the sort of thing that needs to be fixed. Get as much of the model correct as you can, then work on any problems. Generally, the cleaner the model, the fewer problems, and you can spend lots of time trying to fix something that the software will correct once all the pieces are in place.

If it's sized and positioned correctly, you can explode it and then work with its parts.

What do you want to control?

You need to specify different fronts for each unique color. Copy and change the name is enough. Use this to assign the new drawer.

I'm not clear on your structure, but you may need an additional floor. Floor 1 has the slab and is 0" high, and Floor 0 the foundation below. Floor 2 is the raised floor with insulation, subfloor and finish floor.

Make a suggestion -- it's the only way the developers know what features are wanted. They seem rather clueless about things like this. https://hometalk.chiefarchitect.com/forum/6-suggestions/

Needs to be done manually for each window. I used one of the framed pictures (shown in the background) to make a screen.

It's not clear what the problem is. Maybe start with building a correct foundation. Then build a Terrain. Then use a Perspective Overview camera instead of a Full Camera when looking at the exterior. Plenty of resources in the links posted above. The hour long Getting Started webinars on YouTube are a good place to start. Just be aware they show using Pro, so depending on your product, you may not have all the features shown.

Move your foundation walls.

If you have the plan with a complete roof, attach it and I'll have a look.

Finish the roof and probably all that will fix itself.

You mentioned Chief Architect several times, so to be clear, this is the forum for the Home Designer products from the company Chief Architect. Both Chief Architect (the product), and Home Designer are best suited to typical residential construction -- not reproducing a log fort I know people have modeled log homes, but the logs are horizontal, and the homes are generally rectangular. If you want something that looks real, I'd look elsewhere. If you just want to show the concept and are less concerned with an accurate look, then Chief Premier would be my choice. It has the tools that would be needed, Home Designer does not.

Don't try to make this into whatever software you are accustomed to. Suggest you start with the hour long Home Designer getting started webinars on YouTube. Multiple ways to do that. What do you see when you select a wall?

Where did you source the socket? You may need to use a small Wall Niche first, then place the socket.

This forum is really about the software, not design issues, and you probably won't get much of a response. You might try houzz.com.

You must rebuild the terrain to see any changes you make to the terrain in 3D. I know of nothing that prevents you from leaving it on when doing a walk-out.