Need Expert Advisor and Indicator Based on EMAs and RSI

Need the following

open positions based on ema crosses above or below other ema crosses within a certain number of candles and rsi crosses

close positions based on RSI crosses or constant values (depending on user input)

open positions without showing the take profit and stop loss (however behind the scenes the tp and sl are known and adhered to)

open positions only during a certain time (depending on user input)

lot size is a constant or calculated (depending on user input)

maximum number of trades open (depends on user input)

maximum number of trades open for a symbol (depends on user input)