Buy1, Buy 2 and Buy3 strategy

[fabiobioware]

Hello, I would like to know how I make a condition as follows.

I have 3 buying strategies
Purchase1
Purchase2
Purchase3

When Purchase1 is made with the 0.01 lot, if it reaches a profit of 100 pips it will be necessary to look for a new trade again starting with the Purchase1 strategy
But, if the Purchase1 that is in progress becomes -0.20 negative, the Purchase2 strategy is enabled, if answered it opens a new purchase with 0.05 lot.
If the value of Purchase2 becomes positive and overcomes the loss of the value of Purchase1, then all trades must be closed immediately.
Otherwise, if Purchase2 is also negative at -0.20, the Purchase3 strategy is enabled, if the rules of the strategy are met, it must open a new purchase with 0.20 lots, if it for some time exceeds the value of the loss leaving profit all negotiations must be closed.

Can you help me and create this?

[l'andorrà]

That is not a trivial project to do. Do you have anu initial one to begin with?