Yes, you can. Unlike the majority of brokers out there who either directly prohibit scalping or indirectly prevent scalpers from trading, we welcome scalpers. By this point you are certainly wondering why. Dealing desk brokers hold the other side of your trades. That is, they expect the market to go in the opposite direction and you lose. Scalpers use very short orders, which means they stay in the market for a very short period of time, during which the market doesn't change its course.
The other problem for a dealing desk is that scalpers generate a huge number or requests at the same time (let's say during important news releases) which makes it hard for a dealing desk to handle them.
OctaFX passes all the trades to its liquidity provider and just receives its commission. Therefore we are interested in high volumes (the higher the volume — the higher is our commission we get), which are usually generated by scalpers.