EA Equity Controller

I would like to create an expert advisor in mql4 that has the following functions: - Equitystop: setting a percentage value of maximum equity commitment. Example my account has an initial equity of 100,000 if set 10% when the equity reaches 90,000 the EA closes all trades. - Maximum number of operations allowed: the expert advisor prevents the opening of new simultaneous operations when the maximum number set has been reached. - Trailing Stop Loss: Activation percentage: for example, if the parameter set was 80 it means that when the market price reaches the Take Profit for 80% starting from the break even, the trailing stop is activated. Starting Level: it is the level of the stop loss at the activation of the trailing stop loss. Example if the parameter is 20 it means that when the trailing stop los is activated, the stop loss is placed between the distance from the break even to the Take Profit for 20%. Incremental Step: the percentage of between the distance from the break even to the Take Profit. Example if the value is 1 the distance from break even to Take Profit for 1%, if 1% were 10 pipis when the price rises by 10 pips the stop loss increases the level by 10 pips. - Hold-on: if an operation is closed due to equity stop, max number of operations or trailing stop loss, the system does not open more operations until it receives the order to open an operation with lots less than the last closed operation of the same currency cross or magic number.