what would be the minimum drag speed in config 1+F?
1+F? Who cares? What is the value of min drag, best L/D, etc in this config?
pull the stick back gently and progressively and see when the TOGA kicks in and note your speed.
I believe you've confused this with Aprot.
However, if you'd like to use the airplane to answer this question, you can. Simply activate the approach phase, then select managed speed and see where the airplane flies in each config. The speed it flies is the minimum drag speed for that config...ie... "Green Dot", "S" and "F"