Cutouts in the Base Plane

This code:

cutoutsBase = 
[
    [10, 10, 10, 15, 0, yappRectangle]                           //--- A
   ,[25, 15, 10, 15, 0, yappRectangle, yappDefault, -30]         //--- B
   ,[45, 10, 10, 15, 2, yappRoundedRect]                         //--- C
   ,[60, 15, 10, 15, 2, yappRoundedRect, yappDefault, -30]       //--- D
   ,[50, 40, 5, 0, 6, yappCircle]                                //--- G
   ,[20, 40, 10, 15, 0, yappRectangle, yappDefault, yappDefault, yappCenter] //--- E
   ,[35, 40, 10, 15, 0, yappRectangle, yappDefault, -30, yappCenter]         //--- F
];

Creates this cutouts in the base plane: