Hi, I'm a Quantconnect Noob - really liking it but having a little trouble figuring out how to import signals right before open (say 9:29am) when live trading.

I try to import a csv I have saved in dropbox as a signal, but I couldn't find any examples on it. 

Not sure whether we can handle data that does not reference individual symbols. Here's a file with the Initial Jobless Claims (IJC) values over time as example. Could someone post an example on how to fetch signals from external data source?

date              ijc
12/1/2007    123456
11/1/2007    123456
10/1/2007    123456
9/1/2007    123456
8/1/2007    123456
7/1/2007    123456
6/1/2007    123456
5/1/2007    123456
4/1/2007    123456
3/1/2007    123456
2/1/2007    123456
1/1/2007    123456
12/1/2006    123456
11/1/2006    123456
10/1/2006    123456
9/1/2006    123456
8/1/2006    123456
7/1/2006    123456
6/1/2006    123456
5/1/2006    123456
4/1/2006    123456
3/1/2006    123456
2/1/2006    123456
1/1/2006    123456
.....