The Main Wallet is a convenient feature that makes it easier to manage deposits and withdrawals and distribute funds to your trading accounts.
As it is not connected to trading, you can store your funds there without any risk, and distribute them to your trading accounts as you see fit.
You can think of the Main Wallet as a sort of vault, where your capital is kept secured, ready for you to withdraw, or transfer to a trading account in order to use in the markets.
Here are some facts about the Main Wallet, laid out in bullet points for your convenience:
Every client automatically receives a Main Wallet upon registration.
The Main Wallet is a single gateway to all payment providers, meaning that all funds end up directly in there.
The Main Wallet is not connected to trading, therefore there is no risk in storing funds there.
You can deposit to, or withdraw from the Main Wallet anytime.
You can distribute funds from your Main Wallet to your trading accounts as you see fit, making it easier to keep track of your equity at any time.