EA to put a trailing stop on all trades on a chart, based on a percentage of the profit

I would like to have an EA which lets me decide, for every trade on a specific chart

1) when to activate the trailing stop loss, based on the profit of the trade. for example starting from 200 points (20 pips)

2) the distance of the trailing stoploss, based on a percentage of the profit. if I put 50 and I am in 100 points profit, the SL is 50 points. if the profit goes up to 200, the SL is 100 points. if the profit goes down, no changes

3) the step to increase the trailing stoploss, in points. to avoid changing at every tick. for example every 5 points

these should be the parameters

1) profit to activate trailing stop, in points

2) percentage of the profit

3) step

the same settings apply to all the trades based on a specific chart. so I can have different settings for different charts, and in the same chart, all the trades follow the same settings