There are three places you could be talking about:
The Intuitive Programming Screens (IPS). Those are the optional screens that allow you to write and execute programs without dealing with G-code.
Visual Quick Code: these are the visually based screens that generate code for you but simplify the process by prompting you with pictures and menu prompts. These codes are inserted into an existing program or run in MDI.
Quick Code: a simpler, non-graphic aid that also generates code for insertion to a program or running in MDI.
In any case, I think that you'll find all of them lacking in face milling in the Y direction only (if somebody knows otherwise, please correct me). I too had parts that needed to be face milled in one direction, or only to a certain Y value and there didn't seem to be any way to control that.
If it's something you do regularly, you could eventually modify your QC or VQC templates to do your specialized operations with nothing but prompts. Otherwise, you'll likely get good with writing basic G-code in MDI (that's what I did).
In my brief exposure to IPS on the mill, this is my opinion: I wouldn't live without it on a lathe. It's a huge time-saver for many basic operations. On the mill, I'm not so sure that it adds anything to the machine. Everything I saw in the IPS screens, could be done in the VQC templates just as easily. And I don't think you can customize the IPS screens so I didn't waste much time with them on the mill.
But then my opinion is worth exactly what you paid for it here.