How do you change the lot size options in the MT4 pull down list?

 
Does anyone know if there is a way to change the default lot size values in the pull down list of the Order window of MT4. I know I can change the default lot size in options and I know I can type in what ever value I want in the order window but I would like to just use the pull down list to speed things up a bit for my martingale strategy. For example, the current default values are. 0.01, 0.02, 0.03, 0.04, 0.05, 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0. I would prefer, 0.05, 0.08, 0.12, 0.18, 0.27 and so on. Is their some sort of config file that I can modify?, I can't seem to find anything myself?
 
Not that I am aware of; you would need to code your own order window.
 
Just type in the value that you want.
 
I currently type in the value I want, but price can change suddenly and a don't always get the price I want. Doesn't matter on larger time frames so much but when scalping on the 1 or 5 min time frame I think it would help to be able to quickly select the appropriate lot size.
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