Setting up to be a scalper requires that you have very good, reliable access to the market makers with a platform that allows for very fast buying or selling. Usually, the platform will have a buy button and a sell button for each of the currency pairs so that all the trader has to do is hit the appropriate button to either enter or exit a position. In liquid markets, the execution can take place in a fraction of a second. this is why brokers such as freshforex are preffered by scalpers, they offer instant market execution platform, this is what scalpers need!