Visual studio is a nice program as well however I did not want to spend the time to learn it. I have been using geany for years and yes it will to the "Ser" thing, it gives you a list, select it and press enter. This works if it has been entered previously into your code. I like this for labels etc, For the commands I enter them manually because of problems I have had in the past with autofill. I like the symbol list, scrabble and terminal. It has a compiler tabe but I have never used it. I have had as many as 20 tabs open without a problem, some local other on a server. I simply set my IDE to use an external editor. I use it on Linux where I can shut the machine down and when I boot it back up I start Geany which loads everything that was loaded before and is ready to go. The Arduino IDE does this as well. There is a LOT it will I do not know about, I keep it simple.