I know people have asked and I have watched these threads.
First, when people say find a instance/component that has 3d wall hole component and edit it. But where? Do they mean find a door, a window to cut an opening?
Second, people also mentioned to make a personal component and add a 3d wall hole component inside. I did that route, but now could I delete the original object that I created fro the 3d wall hole component?
Image attached below, as you can see , the first rectangle of the component is still there after the 3d wall hole component! How could I get rid of it???
Thanks!
Here is the link that I watched the video: