Your thread subject is “IQ Feed real-time data with Trading thru IB”. IQFeed is a data vendor and IB is a broker. Right? Where is there a switch of brokers in there?
The answer to your question in first post is to be found in 2nd post. Have you followed its link in there and understood the info given in that other thread? If you use IQFeed as data vendor then all you have to do is setting IB symbol name into ALIAS field of Information window.
This is universal! ALIAS field applies to any data vendor that you want to use for trading (with IB in this case) so there isn’t “here is how you implement IQ Feed for R/T trading” required (BTW setting up IQFeed realtime feed is to be found in AB docs)! You just have to insert IB symbol. There is no other magic in there.
GetFNData( "Alias" )
does not require code change because it calls Alias field of Information window. And Alias returns a string. If Alias field of Information window is not empty but has name of IB symbol then GetFnData returns that name to be used in your trading program. So there is no difference to using Name().
And if you want to switch brokers/feeds then simply switch data bases. Switching DBs is done in seconds from menu bar drop down menu (set up via Tools-Customize-Commands-File and drag & drop of recent DBs). (Or if you want to run multiple feeds side by side then run multiple instances).
And FYI, AmiBroker is a professional programming software. It is code driven. You don’t go to R, Matlab, Python, … forums and complain about investing time for programming, do you??
BTW, all you seem to be after is provoking, AFAICS. Provoking and writing misinformation is insulting too (see your ET posts in MC thread). That part is to be found at your side of the fence and makes you almost look like being sent by MC to make buzz.