How do the banks and market makers move the forex price?

[RevBilli]

the institutional banks trade actual currency in forex although they trade online right? so with a huge amount of money they can move the market. but for retailers, they just trade CFD and in CFD they buy or sell to the market maker not to another retail trader right? so if I am right to this point and the CFD is a derivative of price and don’t impact on the price then how the market maker moves the price aside from the institutional banks to get the orders of the retail trades or fill their stop and drop them out when the actual move is in the hand of the banks?