solver

See if this helps

What do you want there?

Go to the Home Designer website and search for frog. Read the article to get the basic idea.

Use Soffit Surface for Ceiling Did you try this? How are the two outside walls defined? Also, it looks like you have Angle Snaps off. Best to keep this turned on or it's easy to draw slightly off angle.

Try a curved wall.

Reread and think about what I wrote just above. Start by defining a new wall type that has siding on both sides and use it for the 2 side walls. Draw a wall on the 2nd floor where you want the balcony railing. You have just formed a room. Set the Room Type to Unspecified. Do you get a roof? Draw a wall across to close in the end forming another room. Set that Room Type to Open Below. Use Soffit Surface for Ceiling

Place a wall there.

Suggest you check the Chief YouTube channel for a video that clearly shows the process.

You can create your own materials. Articles and videos available. What appliances?

I believe the floor camera was removed from the toolbar in the 2020 version to help eliminate the problem you describe, although it may be added back manually, so I imagine your friend was using the Full Camera. Problems like this may often be resolved by reviewing the documentation. Reading about the Floor Camera would reveal that it only renders a single floor.

Many items are available in the Library.

I don't understand. Rooms, including a balcony, must be surrounded by walls. Look at the various room types. One of them is Open Below which is really a shortcut way of saying this room does not have a floor structure. Roofs build over rooms.

I don't know of a way in Suite.

Looking at your image above, I imagine you have not created a room, you have simply drawn some walls. The program needs connected walls to form a room, so draw a wall here, and at the end of the hallway on the right -- a Room Divider will work.

Tell the program to place a roof over the room, and if that space is not a room, it needs to be. Notice how all your other rooms have roofs?

It helps to say exactly what the problem is. I'll guess and suggest you change the railing wall type. Use a new wall type with materials set to match what it connects to.

Search the Home Designer site for trace. Or

Look at Lower Wall Type When Split By Butting Roof. You may need to pull the roof plane back then snap it back to the wall.

Check out some of these threads https://hometalk.chiefarchitect.com/search/?q=cape cod&updated_after=any&sortby=relevancy&search_and_or=and

You seem to be asking about levels and not layers. Cut and paste walls from one level to another. You can do this with Reference Display, but there is a bug and the footing outline is missing the end lines. You could draw your footing manually on the foundation level and turn off the footing display for levels above.

You are giving us a keyhole view of the problem. Is this an existing structure? If so pictures of it, inside and out would help. Using the manual roof tools is often easier than trying to get the automatic roof to build correctly.

It looks like you need to lower the roof, and it's not real clear what you are trying to accomplish. These 3 roof planes should probably be the underside of your roof.