Renerabbitt

It looks like you have a roof under your deck whcih is going to cause a bunch of problems in this scenario. try and pull your roof planes back so that they do not pass under your deck rails.

Place the staircase on the bottom floor and then create make stairwell. As long as there is a room that is defined directly above your staircase then it will create the stairwell. This cannot be on an attic level, it needs to be a floor above a floor with the staircase on the lower floor

Click and drag in the viewport

You're going to want to draw those ceiling planes more accurately and also specify whether or not your gable end walls are balloon framed or not in order to auto build an end truss.

Consider posting your plan file. Too difficult to try and recreate

Poche fill is not available in your software version. With a 3dconnexion mouse you can more around the house with camera bumps into walls checked as an option. This is also an option for right mouse only movements but you would need to know how to move your mouse for this effect to happen. So short answer is no, you can not have solid wall fill through a camera section cut

Would be helpful to bubble or notate the area you are referring to on the plans or put a more detailed description or a saved camera. In this case it would be nice if you provided a detail. What are you referring to when you say "Floor Rafters"? Are you talking about roof rafters and their seat cut?

you might try posting your plan file. you posted a material file

break your wall at the intersection of the staircase. what else are you trying to correct? consider posting your .plan file

What software version are you using? They have different capabilities with roofs

Would encourage you to not think of a room as an actual room but rather as a tool to generate a mesh that looks like you need it to. A room couldve automatically generated a lot of the features you have shown here automatically. Your roof rafters are inside of your roof plane in the structure of the roof plane. You would need to implement one of the available methods for turning off the soffits to expose the rafters inside of that structure

Twinmotion is currently Free

240719 (2).mp4