For example, if you have two positions - BTC Perpetual position and ETH Time-based position, you can use the Cross Wallet as the margin source for both positions.
For example, Bitcoin Perpetual Wallet can only be used as the margin source of Bitcoin Perpetual Contracts.
You can switch the margin source/wallet by adjusting the leverage on the futures trading page.
* Leverage - Cross, that means the system will deduct the required margin or loss from your Cross Wallet.
* Leverage - 1x to 100x, that means the system will deduct the required margin or loss from your Isolated Wallet .