Editing of the martingale system on my EA

I'd like to change the loss factor (number of times the lot size is doubled) from one losing trade to two losing trades for the lot size . 

Example:

The below example shows that the first 4 trades were lost and the lot size was increased by 2 for every losing trade hence the 0.08 on the 4th losing trade.

I need a change in lot size after 2 losing trades hence the fourth losing trade should have a lot size of 0.02. I.E: 1. 0.01, 2. 0.01, 3. 0.02, 4. 0.02.......etc 

Find a copy of the Expert advisor attached.