please support poor man's covered call (PMCC) option strategy a.k.a Long call diagonal debit spread. as many users here are not millionaires, being able to trade PMCC allows us to use lesser capital outlay to get almost the same exposure and payout as a normal covered call strategy (plus you get downside protection if the stock drops to 0). Especially useful with expensive stocks like $SPDR S&P 500 ETF (SPY.US)$ $Tesla (TSLA.US)$ $Netflix (NFLX.US)$ $Apple (AAPL.US)$ $Alphabet-A (GOOGL.US)$. We don't have usd40k lying around to do the normal covered call strategy.
implementation wise, you can just lock the long call option up as collateral when the user sell a shorter term call option on it.