After I install Trust indicator it appeared in my Indicator list.
After I install Alert Signal/Alert it appeared in my Strategy/Alert list.
And finally, I have Alert Helper, on my chart.
First, Alert is not Indicator, it is Helper from Signal / Strategy class.
U have to add it as Signal / Strategy.
Make sure to have one active Alert Helper per pair.
I hope this will clarify things if not contact me tomorrow,
via Skype, will offer some help.