Re: Chimney or desk. One or the other.

I don't think I've ever used any cheats other than the occasional ResetSim cheat. As for objects snapping, I've never known any other way of moving an object outside of a snap, although I have noticed very small items that can be placed on counters, diner plates, for example, can snap on several points of one counter. The concept of moving items outside of a snap point is unfamiliar to me though. Sorry.

@arkeiris77 

Edit... I have been looking at your screenshot and I think I understand that you are basically adding a small 'room' that will look like a chimney from the outside? I suppose a couple of things thing you could try are:

• See if it will accept you adding it with the room tool rather than the wall tool. 
• Try moving the fireplace and all objects in that area of the house and draw/add the new room with the room tool. Maybe make the rectangle inside adjacent to the wall then drag the one side of the small room outward then move the other side toward it. Kind of sneak up on it and not cause the jar that seems to be triggering the deletion?

I could definitely try some of it. I can't try all but some. With the wall tool, the picture shows me using the wall/room tool. I find that if I just use the wall/wall tool, there's another deletion as well in a different place, namely the back door at the top of the picture, although there is a difference in that the back door can be put back there once the room is complete whereas once the desk has been removed, the place where the desk was becomes unavailable for anything and everything. That said, I can try building in advance nearby and then sneaking it into place after. Thank you. 🙂