Adding a Porch

[MississippiMims]

I am trying to build a small covered porch or stoop in the area in front of the front door of my plan.  When I try to add a room using invisible rails it wont incorporate a slab.  When I try adding an invisible wall, the slab keeps the existing brick ledge instead of incorporating with the new room.  I also would like to bring the porch out a foot or two from the front bedroom wall as an accent.  I would like some advise on how to make the roof extend from the ridge of the garage structure to cover the new porch.

[solver]

Make your porch room using room divider walls.

 

Use railing walls when you want railings.

 

And for the best help, attach your plan file. A picture of the plan rarely helps.

[MississippiMims]

Thanks for the advise.  I'll give it a try.