You're just leaving out what we've already talked about previously, but its simple for me to re-capitulate
When my Trade 1, with a -2% capital risk, makes +2% of my account, I move the SL to its entry price (so its risk is now 0%), and I open Trade 2 with a -2% risk.
When Trade 2 makes another +2% of my account value, I move SL's of both Trades 1 and 2 to the entry price of Trade 2, and open Trade 3, with its SL also at the entry price for Trade 2, i.e. a -2% risk. Risk at this point is now 0% of account capital.
From this point onwards, no matter how many subsequent trades are added, whether its 2 more or 20 more, as long as I put all the SL's at the entry of the previous trade, no risk to account capital accrues.