[Help with recreating a scenario]

I think you have reproduced correctly what its on Bobby's video, I was able to understand it now.(A)
Thank you! 

[Help with recreating a scenario]

I've been trying to replicate the following scenario but so far have been unsuccesful, could you help me replicate it in a video capture so I can understand it?
The scenario (related to https://allmoxy.atlassian.net/browse/DEV-2328) is:

To replicate the issue:

• Create new job in designer

• Choose shaker door and drawer fronts and a solid wood face material

• Put a few cabinets in the room. At least one door and one drawer front.

• Send to MRP with the next button.

• Save job

• Go back to design view of that job and change doors and drawer fronts to decorative slab with a corresponding material.

• At this point, only the drawer faces will change, doors will stay shaker. Materials will change for both drawer faces and doors.

• Going to MRP will show the same and give validation errors for door style / materials that don't work together on doors.

I don't understand what a shaker door or a drawer front exactly means and how can I work on this.

[When making changes to a select-type attribute where do I see the changes?]

I'm working on the  /catalog/attributes/ , on the attribute options, I want to know where can I find the effect that this "Selector Settings" section has.