DBCooper

Take a look at the drawing sheet setup.  If you are using the OOB template plan, then it is set to 1/100 mm.  You can change it to something else if you want.
 

Are you still on X11?  If not, you should probably update your signature.
 
Here are a few things that may help you (and I *think* they all work in X11):
 - you can make a cad line or wall perpendicular to an off angle wall using the make parallel/perpendicular tool.
 - you can always just type in any angle you want in either the wall or line dialog
 - you can setup allowed angles if you want to have a building that is on a non-standard angle
 - you can use edit area and transform/replicate or make parallel to move a set of walls to a new non-standard angle
 - probably some others that I have forgotten as well
 

You can control how lengths and angles are displayed in dialog boxes by clicking on the "number style" button in any dialog.  This does not affect plan views and is reset every time you start the program.
 
To change how lengths and angles display in plan views, I think you need to change it in the general cad defaults.
 

 

I don't know of a way to set the default for roof labels to use a macro.  If you want an easy way to change them all at once, you can use the "edit all roof planes" tool.  And, to get rid of the white background used for the label, you just need to change the text style that is being used.  Check the box for "transparent (not used when fill style available)".
 

Check out the "edit area" tool.
 

You should be able to setup your own wall type to do this.  Just take a look at the settings under wall properties.  You can specify which layer is used for dimensions and foundation alignment.
 

Did you change the foundation settings in the defaults but forget to rebuild the foundation?
 
Is your siding dropping down and overlapping your foundation wall?  Check the "extension" in the wall type layers.
 
Did you edit the top of the foundation wall?  Check to see if it is set to use the default heights.
 
If it's not one of those, you might want to post the plan.
 

Check to see if the layer they are on is turned on in the layer set you are using for your elevation view.  By default, elevation views use a different layer set than the other camera views.
 
 

The row heights are being set by the symbol column width.  Rename the "2D symbol" column to just "2D" or even just a blank space and then you can make that column narrower.  You probably also want to turn off "use plan view scale" for the images or even turn off "scale images".  By turning off scale images though it will show your fan as the same size as your other symbols even though the fan is much bigger.
 
Might also want to make sure you don't have a top or bottom margin set.
 
 
 

You should just be able to add shutters to the mulled unit and then adjust the height and width to be what you want.
 

I think it is pretty easy to build that roof using the automatic roof tools.  
 
I set the auto roof to build at 5:12 and then set the pitch to 2:12 for the lower wall where the shed is.  Need to set the side walls for the shed to "full gable" and the upper shed wall to "high shed".  I also had to go into several of your rooms and tell them to have a roof over them (not sure why they were turned off).  I then set the overhang on the end wall to a small value (like 1") and reset it to "default wall top".
 
I also noticed that some of your second floor walls were not aligned with the walls on the first floor.
 
 
 

 
 

I think you have to uncheck "same roof height at exterior walls" to get what you want.
 

Try dragging the sides of the stairs together into the inside corner.  I think the rule is that they always need to meet at the edge of the deck/porch which means they don't overlap on outside corners but they should in inside corners.
 

I have seen something like this happen.  It probably has nothing to do with the paint and I would bet good money that if you just opened up the stair dialog and clicked OK that it would do the same thing. 
 
My guess is that you either drew the walls with a small (<1") gap or overlap with the sides of the stairs.  When you do anything to the stair, then Chief tries to align the stairs with one of the walls which ends up moving it slightly.  The walls then get cut off by the stairs instead of following along the sides.  The solution is to turn off the railing display in plan view for the stairs and landings and make sure everything is positioned and aligned exactly the way you want.
 
These are just guesses and if it's not that then I have no idea.
 

Yes.  The easy way to do this is to shift-select the stair and then any changes you make will only affect the one you selected and not any of the connected ones.  

You *might* be able to get what you want by editing the wall polyline.  It might be easier to just convert the stair into a symbol and make an opening in the wall using a pass-through.

Try going to "default settings", then "3d view defaults", and then "rendering techniques".
 
This will change it for all views using standard though, not just elevations.  I don't know if there is a way to just change the default for elevations but I couldn't find one.
 

You might need to open the schedule and check the box to include skylights.  They don't get included automatically by default.
 

3.  Your OSB is marked as "framing" in the floor structure.
 

You can already specify the image resolution to be whatever you want.  
https://www.chiefarchitect.com/videos/watch/5316/high-definition-image-export-with-transparency.html?playlist=108
 

I see that they just released the 26.2 update today.  According to the update notes, that was fixed.
 
https://www.chiefarchitect.com/support/updates.html
 

The easiest way to get something that acts like something else is start with a copy.  Find the afci outlet in the library and copy it to your user library and then make the changes you need.  If all you want to do is change the label then you can use the edit cad block tool to change the text to whatever you want it to be.
 
 

Not really sure that they need to be (or even should be) solid railings but my guess is that the boards you are seeing are just the wall caps that you can turn off.
 

First thing to check is to make sure that all of your wall tops and bottoms are set to default heights.  I can tell the one you selected is because of the picture above but you might have other walls that are not.   The easiest way to check is to just group select all the walls on each floor and see if those checkboxes are still greyed out or if either has a "minus" instead of a "check" mark.
 
Then I would look at your floor and ceiling heights and make sure they are all set to "use default".  Again, you can group select your rooms, maybe using the select similar tool, and see if they are set the same.
 
If it's not one of those obvious things, then you might want to post the plan so that someone can poke around in it.
 

Electrical objects can attach to furniture in X16 even when the layer is turned off.  I noticed the same thing in X15 with cabinets.  Seems like if the layer is off, they maybe shouldn't.