solver

This should be obvious Look at the Structure settings for the room with the unwanted floor structure.

Have you toggled off textures?

You may not need a 2nd floor if the tower is just a high ceiling room. If so, raise the ceiling.

Delete and rebuild the trusses.

The answer and other info is in the Help system, and found under the Room Labels topic, which is why I suggested you go there.

Search Help for Room Labels.

Manually. You probably could have done a few walls in the time it took to post this question Turn on Reference Display, drag the walls to the foundation wall below. They should snap into place, if not, use the Align With Wall Above/Below tool.

Turn on the Rooms layer.

Use Edit>Edit Area to select your entire first floor. Cut, then Paste/Hold Position

This auto builds easily. As for your manual roof questions, plenty of videos on the Home Designer and YouTube sites.

Try these settings

Post here for the best response. https://chieftalk.chiefarchitect.com/forum/15-seeking-services/

Post the plan again, making sure Pro is closed.

Try Preferences, Reset Options, Toolbars

View>Toolbars

Hi Bill. My post above is generic and posted when I see a new user. I don't have a copy of Suite 2019, so cannot give specific help right now, but I did look at your plan. Thanks for attaching it, and making it specific to your issue. As you know, you are seeing the gap between the panel you are using for the railing wall and the wall below. Here I moved the wall below so it aligns with the panel, then placed a soffit (shown in white) to cover the gap. It's seamless when left as its default drywall. If I remember, Pro has a Wall Follows Stairs setting that uses a railing wall set to Follow Stairs. Stairs generally need lots of work, even in Chief Premier.

Reference Display. It's limited to one floor, above or below. For locating items like a footing in the foundation on the 2nd floor, CAD lines drawn then copied floor to floor.

Try this. In the dormer plan, select a dormer and explode it. Copy its components -- walls and roof, then back in the original plan, Paste/Hold Position. With Pro, you can draw in a dormer wherever you want. Also, try doing the dormer while on the Attic level. Here are 3 dormers, 2 Auto Floating on the left -- one placed on level 1, the other on the Attic level, and the start of a manual one drawn on the Attic level. Just 3 walls with Roof Cuts Wall At Bottom checked.

Did you understand/try David's advice?

Suite has the Align With Wall Above/Below tool. Select the wall and if the tool is not shown, manually move the wall in the correct direction (use Reference Display).

Home Designer is really limited when modeling these type of features. You can use a Wall Covering applied wall by wall, or via the Exterior Room to do the entire house. A out of the box way using moldings is to create a single room around the entire building, defined with room divider walls and set as Open Below, no roof etc. Apply a base molding in this room, changing the height to be as required.

I tested in Pro 2019 and was able to rotate. Tried in Pro 2016 -- no rotate handle. Looks like it's a new feature.

Don't know which object you were trying to rotate so I picked one of the shapes and in elevation you get a rotate handle.

Have you checked the catalogs -- manufacturer and bonus for feet? Have you tried selecting it in an elevation view and rotating it?