Auto loading capacitors

[EOW]

For plate capacitor, the middle plate must be in three parts like drawing.

[EOW]

I can use the power from a source for harge the capacitor. The middle plate must be like I drawn (first image): insulator must prevent charges to move inside the middle plate. The electric field from P1/P2 must be separate from P3/P4 like that I need the same energy for separate the middle plate than 2 capacitors separate.

Step1 : charge the capacitor (it's like charge 2 capacitors far away), second image
Step2 : Move far away the middle plate, third image
Step3 : Move far away P1 and P4 and move far away P2 from P3: recover energy, forth image
Step4 : Recover the energy from plates P1/P2 and P3/P4 like new capacitor, fifth image
Step5 : Replace all plates, this need 0 energy because there is no charge on the plates

I gave the energy for charge 2 capacitors (like there are separate in space). I need the energy for move away 2 plates of 2 separate capacitors. I recover the electric energy from capacitor. => The sum of these energies = 0
But I recover the energy for separate P1/P4 and P2/P3

Repeat the cycle.

Maybe it's necessary to have a bigger central iron like the last image shows.

[EOW]

The middle plate must be in 2 parts not three. Blue color = full iron. Magenta color = full iron.