Hello, I cannot set 0.1 Lots in my Script refering to MT4 Bridge of Zorro. It says invalid parameter function, invalid order size. Where should I change that value ? I cannot edit the DLL function, I do not have access to it. I can only edit the Zorro EA in MT4. Thanks for any help.

You set the lot size in the asset list under "LotAmount". 1 lot is always the broker minimum, so it's equivalent to 0.1 or 0.01 MT4 lots dependent on asset and broker.

i guess u have to put "Lots = 1;" in your code
- if your broker starts starts with 0.1.

-> if your brokers smallest lotsize is 0.01 u must use "Lots=10;")

but it also took me a while too figure it out cause it was too simple

sry lots of €dits...