solver

That's the default. When you build the 2nd floor, you have the ability to make the ceiling height (and wall height) whatever you want. Using auto built roofs, you will need to turn them off and raise the ceiling height. You can build the roof and set Ignore Top Floor. It depends on how the home will be built. Will the roof sit on the 1st floor walls or on the 2nd floor deck? Just think about how the program works and how and where it builds roof planes. Also, search the Home Designer website for Cape Cod.

Did you build a 2nd floor? You cannot build rooms on the Attic level.

It's on the 2nd floor. I see no roof in the middle of the first-floor area. It helps if you post images of the problems (screen captures).

I don't think Home Designer or Chief will create the railing using their automated tools. You could with some work, manually create it in Chief. One big advantage of Chief is its various tools you can use to create things from scratch. I just did this curved coffered ceiling in Chief. A bit tedious, but not difficult. You would need a 2nd program like SketchUp to replicate this in Home Designer.

Chief Premier Pro does a good job at roofs. The PolyLine Union tool I referenced above is just a convenience as it saves you from deleting and then extending an existing roof plane.

It's not in Pro. I forget how limited the Home Designer products are. Glad the video was helpful.

That's an auto generated attic wall that spans from the ceiling to the roof. What were you expecting? Raise the deck room ceiling to make it go away.

Not in Home Designer. Google 3D Warehouse for similar symbols.

Watch on YouTube: http://youtu.be/NOcDVfC-XF8?hd=1

Go around and use the Join command to join each roof plane edge to the one next to it.

Is Monolithic Slab checked? Post the plan for better ideas.

Ceiling Over This Room

Divide the space with a wall. Lower/raise the floor.

Have you considered this? It stays true to the original house, and gives you a few more sq ft in the garage.

Auto roofs may not always work. With Pro, you have manual roof tools. Suggest using them to solve your issue,

You will need to add your own doors to show open like your image above.

An Interior Dimension should give you what you need. Place Point

Copy/Paste ?

I looks like you have done that on the left side. Have you reviewed your dimension defaults and docs on dimensioning? Like a Point?

Have you watched the roof webinars on the Chief YouTube channel.

Looks like you used a small roof plane over the bumpout. Select the main roof plane, put a break (3 key) where the arrow is and drag the lower edge out.

Search help for temporary points

See Plan Defaults. Layer Display Options

This shows what you have (default settings). And with the setting I suggested above. Make sure the foundation is rebuilding or you may not see a change.