Some brokers have a max lot size of 100, others 200 and some more.
If your broker's max lot size is 100, there isn't anything that you can do, except of opening 2 orders simultaneously.
My broker's max lot size is 200 lots and I can write 200 lots in the New Order window, if I write something greater than 200 the buy and sell buttons become inactive.
So, there isn't a problem of MT4/5 terminal, since I've got the latest version.
Contact your broker about it, even though it would be best to wait until the markets open.
I spoke with my broker and they said that the Max Lot size on MT5 is 100
Is that the same as you?
You need to open multi orders.
Hello, thank you. What are multi orders and how to I open them?