solver

That video is for Chief, not Home Designer. I see no direct control over rail profile in Home Designer. It looks like from your image above you are using Panels. If so, you may be able to build a railing in another program like SketchUp and import it for use as a railing panel.

The article you linked is completely different than what you want to do. That ability is only found in Chief, not Home Designer. Try using a Custom Backsplash.

That's all you do.

Library>Install Core Content

I seem to have the opposite problem -- spinning when I don't want it. I once suggested that spin speed be selectable. Don't know of any way to control things.

Think first about using interior rooms to control the roof, not about getting walls/rooms defined as they are in the actual house.

Change ceiling height, walls will follow. No direct control over non railing wall heights.

Keep auto rebuild roofs on until the roof is correct. Roofs build over rooms, so focus on the roof first. Once it's correct, then turn off auto rebuild and work on the rooms. It looks like your default roof pitch does not match the house, the garage roof is too low etc. And why draw the house with the front at the top of the screen?

Rebuild the roof ...

Have you checked the website for a viewer? Many people have a Dropbox or similar account that may be used for transferring files.

Did you zip the plan?

I downloaded your plan when it was posted on ChiefTalk and had a look. 1) I noticed stairs, so I assume you will have a 2nd floor. If so, it needs to be built prior to working on the roof. 2) You have set the pitch in many of the walls overriding the default setting. 3) Use Gable Roof Lines as a last resort. To answer your questions, add the 2nd floor. Go to Edit>Reset to Defaults. Choose All Floors, then check everything below. That gets things back to a known state. Set the desired walls to Full Gable. For the gable on the rear, break the wall and set it to Full Gable. For the gable outlined in red, probably manual roof planes, so I'd get the rest of the roof as close as you are able, then tackle manual roofs. With Pro, you really should learn about manual roofs. Not difficult, but do take some practice. Also, it's rare -- really rare that I see a DIY design, both plan and exterior that does not need work. If you are open to having your efforts critiqued, post in the Building a Home forum on Houzz. https://www.gardenweb.com/discussions/build And here is what I came up with, not knowing much about the interior.

That's the 2021 Pro trial default settings. No way to control -- turn on/off that I see.

No.

It is showing. Somehow you entered it as a quote. Just delete what's there and type in the info -- thanks.

Use a Custom Backsplash. Here is a video to get you started. Watch on YouTube: https://youtu.be/edhaV2f_Ucc

You have created a Roof Baseline Polyline. You may turn its display off in Layer Display Options. You can delete it via Edit>Delete Objects

You can only rotate a slab in plan. What are you trying to do?

Always -- when something does not show, check your Layer Display settings.

Do you understand Your software isn't missing anything, newer versions simply added the word flat to be more descriptive. You must have a ceiling plane drawn first. That's how the program knows where to build the bottom of the truss.

Newer versions of the software use “Flat Ceiling Over This Room” instead of “Ceiling Over This Room”. You will find tutorials and videos show various versions of the software.

That option is always there. Please post a screen capture or 3 showing the problem.

Read about Use Soffit Surface for Ceiling.

Open the office/bath etc rooms and on the Structure panel, check Shelf Ceiling. Make sure they have the shorter ceiling height too.