10) Do same thing like below.

11) Select entire element and go down to smoothing groups and click on Auto Smooth or deselect yellow number of  smoothing group.

12) Go to one of the upper corners and chamfer edges a couple of times, like this.

13) Now select these polygons and extrude them down a little. Make sure that you check local option.

After that attach these two symmetrical objects and weld all vertex  that impact.

14) We are now going to create menu buttons. To do that create this rounded corners rectangle shape.

15) Add Shell modifier to it and place it like this.

16) Copy monitor frame and new object and make sure that you don’t move them. First select one of the monitor frame and go to create panel, choose Compound Objects from droping menu. Select Boolean and activate pick operand B, pick rounded box object, make sure that you check Subtraction A-B.

After that repeat  all processes with copied object, but only this time select Intersection option in Boolean and shrink it a little bit.

17) When that is done make these five boxes and space them equally. Make sure that you have 3 height segments.

18) Convert them to editable mesh and attach them all. Weld vertex as it is shown below.