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try drawing curved wall first and have radius to outside main layer selected with the radius you want. then make sure you have your 90-degree corner it will snap to that. Then move it to where you want and draw the straight walls off of it. I use CAD elements to note tangent points in your case at the 1m mark on one side draw vertical line and then the other horizontal and then use fillet command to find the corner aka center of your curved wall and it also shows where straight walls start from. The curved wall feature needs some love from programmers as it is not easy to manipulate and place them how you really want. Should have adjustments like a CAD arc or circle have. change chord length, angle, radius to main layer, center point etc. and you can lock one down once happy.

in plan view click it. it will show some dims that locate it and if you look around object a small grey triangle thingy. Grab this triangle and rotate. it ill rotate based on your snap angle setting if on or free if off. see screen shot below. Note many other ways to move etc are in the help screen. Peeps should read it or use it when inside a command

try this post and thread for more info:

Do you have Door LABEL turned on in display options?

Oh and above I messed up when I said room defualt I meant for particular room itself on the plan you open the room edit screen and change floor level. After you changed floor level did you rebuild foundation? Turn on step markers so you can see where there is step in slab. Sometimes you have to edit the AUTOMATIC formed foundation as it is not perfect. So I attached screen shots of s simple house I did in HD PRO 2025 Floorplan portion showing porch which is under main roof Then foundation showing steps and stem wall for garage on one side. Then room spec - I have room type set to PORCH. And finally 3d showing lower porch floor. note once you get floor right TURN off AUTO REBUILD for foundation Sometimes ya just have to play with it. Software developers in charge of slabs should come out to the Southeast where majority of foundations are slabs and see how they are designed and built. God bless you if you want a post tension slab

below with big black arrow pointing is where I have lowered floor before for a particular room. Makes for great patios and porches.

open defualts goto rooms go to actual room you want to change defualts Open and edit structure. but why? garage is lowered so any water dripping from car does not roll into house,

room dims are from the sheetrock. Interior dims go to studs for framers so will be 1" longer than room dims if each wall has1/2" sheetrock room dims are generic for people looking at plans do decide if they want the plans. Interior dims are for construction

wow your menus are different then my Windows PRo. I mean You have emojis whats up with that?

Ohhhh never mind as all I know is pro version But does give you a reason to upgrade for sure as pro can do a lot.

send her to the website here and pictures of the library stuff or go to the member profile who adds them as he has info about all the libraries he has added and you can get a pages of piictures of library contents see below. OR open a new project and let her play with computer by taking those things she likes and just adding them to the plan. then you come back and arrange them and pretty it up and print. Chief_Content - HomeTalk Forum (chiefarchitect.com)

make a new wall type.

what software version are you using? PRo has curved walls

no add some crown inside the tray for a fancy look.

not sure if it will work but might if you set the material for whatever you added to door to look like hole OPENING (NO MATERIAL) under HOME DESIGNER CORE CATALOGS MATERIALS INSULATION Not sure it will work but easy enough to try