If an account signs up and un-enrolls at a later time in the SYE program, when can it be re-enrolled into the program?

After un-enrollment from the Stock Yield Enhancement Program, the account may not re-enroll for 90 calendar days.

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If I cancel my participation in the Stock Yield Enhancement Program, can I re-enroll in the program at a future date?
If I want to sell loaned stock, is the sale process exactly the same as selling other stock in my account?
How can I see SYEP collateral held at IBKRSS on my statements?
Will IBKR lend out all eligible shares?