solver

No. They need to be on a unique layer and Home Designer lacks that ability. I'd create a separate plan as described in option 2 and copy them there. Copy them back as needed.

Here are two ways. Draw a line from the lot line towards the setback -- length is not important. Make the line perpendicular to the lot line. Open the line and set the length. Use Point to Point Move to move the setback line to the end of the perpendicular line. Delete the perpendicular line. or Create a new plan with a terrain, and make the terrain big. Copy the lot boundary and the setback lines into this plan. Copy, Paste Hold Position. Select the setback lines and use the temporary dimension to position it. Once they are positioned correctly, delete the setback lines in the original plan and Copy, Paste Hold Position the new lines.

Don't understand the question. You can set the distance between 2 parallel lines. One will move as needed. What are you trying to accomplish?

If you do have Chief X9 and not Home Designer go to https://chieftalk.chiefarchitect.com/ Suggest you say specifically what you are asking about. You are aware of the Dollhouse view, and you can use pony walls with the top set invisible.

Check with sales/support.

Is auto rebuild roofs on?

Suggest you contact support.

What is it you are not able to do with Pro? If you just want to pay someone to do the work, there is a Seeking Services forum on ChiefTalk. https://chieftalk.chiefarchitect.com/forum/15-seeking-services/ Post over there. I'd state you want someone local, as you will probably get people responding from all over.

Are you having problems or just curious? This is a good question for sales/support.

The Knowledge Base is a good place to look. https://www.homedesignersoftware.com/support/article/KB-00138/adding-a-custom-material.html

If auto rebuild roofs is off, you can cut the roof planes and paste/hold position an an upper floor. Right click on a roof plane and choose Display On Floor Above. Floors are a place where things show in plan, not necessarily where they show in a camera view. I could draw a slab on floor 5, and set its height so it displays at ground level.

Pro has manual roof tools. Have you considered using them?

You will find this tool in the Edit Toolbar. The Edit Toolbar is context sensitive, so it displays things relevant to whatever is selected. You may also right click the stair, and find the Edit Toolbar items there. By default, it's in the status bar lower left of the window.

Search the forum for tub. Check the Knowledge Base too.

What type of issue?

Is what David posted -- using a soffit for the glass, not working? You can do this differently in Architectural using a Pony Wall, but the soffit will often give you better control.

The software does what you tell it -- no automatic scaling. As David said "You look at it and adjust manually as necessary". I'll ask again. What is correct? What are you seeing, or not seeing that you don't like?

Don't know why it's this way, but here is how to fix. Select everything on level 2 and copy (or cut) it. Use the Delete Current Floor tool. Create a new blank floor, setting the ceiling height and any other structure settings. Paste/Hold Position the copied floor. You should now be able to change the defaults.

What is correct? What are you seeing, or not seeing that you don't like?

Check with support.

There is no simple way to model 3D dirt. The software creates surfaces, not solids. A slab, for example is hollow, as seen in the cross section view you provided. That said, you could use a slab (paint with a dirt material) and position your cross section just in front of it.

Do you understand that's not how it would be built? The void would be filled with compacted earth, or more likely, never excavated. If you want to show a block of concrete, use the slab tool to fill the space.

Do you want to remove the floor?

Click the edge.

You may select the Drawing Sheet and move it as required.