Here is some way to do that: https://fxdreema.com/shared/bA2I4HVQ
The other way is to calculate SL and TP before Buy now/Sell now
And the other way is if I add "% of..." options in Buy now/Sell now blocks, similar to block modify stops. In any case, what do you prefer - % of... (where you write values like 100, 200, 50, 25) or times from (where you write values like 1, 2, 0.5, 0.25)?