EMA crossover EA for Renko charts (MT4, 5 digit broker)

I would like to have a smple EMA crossover EA, below are the requirements:

1) It should work on Renko charts, you can get the expert that turns your chart to Renko charts here: https://www.mql5.com/en/code/9358. It's definitely great if it can work on other charts too, but not a hard requirement.

2) It should be able to be customisable with any EMA the user defines. For example I should be able to choose a 10, 20 EMA, or a 50/100 EMA crossover etc. Basically the user should be able to select the length of the two EMA's.

3) Should be able to work on aboth 4 digit and 5 digit brokers.

4) This EA should not use a stop loss. The first time it is deployed to the chart, it should wait for a crossover, and then buy or sell in the direction of the crossover.

5) As there will be no stop loss,  the EA must work like this: If you have a crossover, you close you previous position. Example: Short EMA passes long EMA from the bottom up. So the crossover EMA buys. If later the fast EMA passes the slow EMA from the top down, it closes its previous order and issues a Sell order. This is a basic requirement.

6) I should be able to close my order at any point I want to, and if I do, then the Crossover EMA just looks for the next setup, ie the next EMA crossover.