The option for breakeven at previous TP should work like this:
Let’s consider an example with 3 TP levels. Firstly, all trades have to be opened by the same signal. When the first order is closed at TP1, the SL of the second and third orders are moved to open price. Then, the second order is closed at TP2 and the SL of the third order is moved to TP1 price. Remember that the market price is already at the TP2 level, so the SL has to move to TP1 when the second order is closed.
And if you are using the other option, “At open price”, note that the EA doesn’t use points, as in the minimum amount of price change, but it uses pips, as in 1 pip = 10 points. Keep this in mind when setting trigger and offset pips.