I only have a small monitor so I wanted to maximize the screen size of my MCFD so I built my own.
1. First create a panel, and name it MCFD in properties. If dont know how to create panel see my method 2 tutorial.

2. Using a graphics program create a file, with a hole the size of your desired "screen", as defined by your monitor lua script.
3. Save it to Helios images folder to use as a background,
4. In panel properties, set the background to your saved file.
5. Drag a MFD botton from toolbox to MFD panel.

6. Rename is OSB1, repeat this step 4 more.
7. Position them along the top.
8. Select them all and copy them.
9. Paste and move them all simultaneously to the bottom.
10. Create drag more buttons for OSB 6-9.
11. Position them on the right where you want them.
12. Copy and paste.
13. Move the newly pasted buttons simultaneously to the left using the arrow keys on the keyboard.
14. Rename them all to relect their real names.
Now the bindings.
15. With OSB1 (MFD1) selected in properties, click on the
OUTPUT tab.
16. Since I am creating the duplicating the right MCFD.
17. Expand Interfaces > DCS A10C > Right MCFD > Push OSB1.
18. Drag from Push OSB1 to Pushed on the Output Tab.
19. Drag from Release OSB1 to Released on the Output Tab.
20. Save
So when newly created OSB1 (MFD1) button is pushed it will, push OSB1 on the Right MCFD in A10C, and when released it will release OSB1 on the Right MCFD in A10C.

Some fine tuning on position of buttons may be required, use the align and distribute button at top of main Panel Window to well position buttons into place.
This MCFD, allows significantly more "screen" real estate than the toolbox version.