Changing to micro-lots

hi

how do i change minimum lot size to test an EA? I want the minimum lot size to be 0.001 (1 cent?) is it possible to change it from the symbol properties?

No. As far as I know only one broker will allow you to trade 1 cent pips with an EA. That is IBFX. You must open the account as a mini account. Then enter lots=.01

if i open a demo account with IBFX, does it allow the 1cent/pip?

Yes, as long as you select the option for a mini account. The currency pairs will have a little 'm' after them. Like EURUSDm

Edit:
To clarify the mini option is not part of the IBFX download but on the form shown below. The IBFX download can be opened either way. When you open the mini account you have to open new charts. A chart for the pair EURUSD will not update in a mini account. A EURUSDm chart will not update in a standard account.

Lot: 100'000 = 10$ per pip
Mini Lot: 10'000 = 1$ per pip
Micro Lot: 1'000 = 0.1$ per pip
Nano Lot: 100 = 0.01$ per pip

0.01 units at IBFX Mini are Nano-Lot 100

You can trade lower trade sizes at oanda, however the maximum leverage they offer is 50:1