Hello!
If you want to place Dutching bets on the selections you pick, go through the following steps:
1. Switch the market into Full Mode

2. Disable all selections first.

3. Choose the ones you want to place Dutching bets on. 

4. Open the Dutching settings, configure the amount to win/spend, minimum profit, whether to Back or Lay, etc.
Do NOT tick 
First ... selections. The program will only bet on the ones you have selected.
When you're ready, press 
Auto-Dutching is OFF to turn it to 
Auto-Dutching is ON.

Voila!
