polishing english:
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Upon copy trade, copy trader’s existing opening position will be closed by Alpha Impact.

Copy Trader account mode will be set to Single Assets Mode. (? done by Alpha Impact if can be set programmatically, otherwise required user to set to Single Asset Mode before starting copy trade)

Only USDT/BUSD asset will be used to copy trade lead trader.
``` Write your response using less than 800 words.
user