I have followed the steps shown in the"grove-steps" image attached to this post.
0- First cut the 2 long pieces and the Cap ( File "Solid_Grove"), for the cap I pocked 2,5 mm.
The 12 mm grove I cut it in the last step( after to add the pieces in the pocket/board). Choose your offset desired in Origin once you cut the pocket at the board to fit them, in my case used -0.1mm
1- Pocket 5 mm (dark grey) and add the pieces on the pocket.
2.1- Cut the 48 mm circle all through the board ( where the plugs will pass through).
2.2- Pocket 2,5 mm (light grey), and add your offset desired in Origin to fit the cap.
3- Cut the 12 mm grove all through the board (where the cables will pass through).
Done!