Question about Position Modified Event

Looking at https://clickalgo.com/ctrader-order-events, the description says this: 

It is also possible to subscribe to the events when an open position has been modified manually by the trader or by an automated trading system (cBot). The events that can be captured are as follows:

ModifyStopLossPips

Does this also apply to a position that has an automatic trailing stop? Ie: if the trailing stop is updated by the system (ie: not through the bot code), does this event fire?