The principle works by having one or more trade-bots and at the moment the safety bot kicks then it will hijack all the coins of all the main bots. This will make sure the main bots can not trade anymore (they will get into error state because of a wrong coin position) and this way you can make sure your coins are safe.

This is of course an suggestion. If you add the drop-loss directly to the main bot then you will almost get the same result. The only difference between both methods is that the main bot can trade again is the prices restore. This is both the power and the down-side. If you add this safety directly to a main bot then it could be possible to get into a so called pendel situation. This means the safety kicks in and steps out directly again, this could result in a lot of unwanted trades. Having a separate drop-loss (or roof-in) bot avoids this problem (in case it happens). However the separate bot also has a downside and that you have to look once and a while to the software to make sure it runs good. (if the prices break to the roof or at a drop-loss situation of course)

BTW
I forget to post this... but the current version 0.9.9.10 has 2 new safeties added to all licenses. These safeties are capable of resetting the last buy (or sell) price and this was added on request by a few users.

If you have a strategy where you use the FeeOvercome then that makes use of the last buy/sell price of the trade-bot. But sometimes you want to reset this last price to follow the prices better (up or down). This could be done by disabling the check inside the FeeOverCome to check a buy or sell price, this could be done using the Percentage Change insurance (in specific with a percentage) and now also using the reset last buy or sell price.