What markets except of Win Horse is good to use the auto-dutching?
There is much less opportunity for a Dutching nowadays due to cross-matching, but sometimes you still get get some in Tennis and Soccer In-Play markets (such as Set Winner, Match Odds, Correct Score).
Try back-Dutching on all selections minus
N potential losers, say on 4 out of 6 traps in Greyhound. Obviously there is no guaranteed profit in that case.
Also, Is there a way to untick "Stop after every Dutch" for all markets (globally)?
No, and we're not adding this option deliberately, as it may entail disastrous consequences when you have numerous markets refreshed simultaneously.
One last thing - I dont know if "Adjust Amount" should be ticked - I couldnt find any explanations what is that
Quoting from the manual (chapter Auto-Trading -> Auto-Dutching):
If you want the size of all bets to be adjusted to the amounts offered in the market, tick Adjust amounts. In this case the profit may be different from the settings as bets will be automatically resized to fit the offer. This way the chances that all bets will be matched are higher.