Breaking a roof in front of a dormer

[MississippiMims]

Eric posted this video (below) on his YouTube channel that shows exactly what I want to do but I can't find the "subtract" tool in HDpro21.  How can this be accomplished with the tools available in my version?

 

 

 

[Garybills]

It can be done manually. It is one story and did it by breaking the front wall and raising it, breaking the roof and making a hole. Then manually drew roof over raised wall and used the number 2 key to join it to the main roof. it just takes knowing how to manipulate the walls and the roof. There may be a better way, but you can't use the subtraction tool in Home Designer program.

 

[MississippiMims]

I already have the walls worked out.  I just need to split the roof in front of the two dormers shown below.

[Rookie65]

Did you try the "break" tool between the dormers and then drag both sides in the direction they need to go?

[Garybills]

If you place dormers and then break the main roof plane and pull it up to the wall, the dormer disappears. Eric’s video works perfect in Chief Premier but you don’t have the subtraction tool in Home Designer. Does Home Designer have the roof hole tool? 

[MississippiMims]

It has the skylight tool which makes a hole in the roof but it has two issues.  1. It wont carry the hole to the edge of the roof.  2. It also makes the dormer disappear.

[MississippiMims]

I discovered that if you explode the dormer, you can break the edge of the roof plane and pull it around the dormer without the dormer disappearing.  Thanks for the help.