Manupulating Flow charts using Smart Art

Good morning,

I am ok with creating a simple flow chart using smart art but my problem comes when trying to create a more detailed flow chart with options.

In very simple terms for example, I want to add a box with a question in it, below this box will be another two boxes, one with yes in it and one with no.

I can add the first answer box by going to add shape and then after but if I try to add a second answer box below the first by using add shape and after, it adds a shape to the end of the flow chart rather than alongside the second answer box.

If I then try to drag the boxes and move shapes it throws the whole flow chart out of kilter?

Any ideas?


Kind Regards and thanks for all your help.

Daniel