I don't know what you mean.
There is one global account profit, which is the difference between Equity and Balance at any given time. This is global, because this is result of all manually and automatically placed trades. You know that while you have 1 trade still running, the value of Balance does not change, so Balance is really the latest known money amount you had in your account when there were 0 running trades.
To check this value go in Condition -> Account and there you will find these global values.
If you don't need that global profit, you can get the profit made out of few trades only (a group of trades). These trades can be all trades made by the current EA. Each EA knows it's own trades and normally does not touch others. So you can calculate the sum of the profits made from those trades only. And this is what Check profit (unrealized) (old name Check unrealized profit) do.