"IBM Rdi" is arguably the best code editor for coding on IBM i. That's pretty much a given. But, it's still filled with little annoyances and things that make me groan. one in particular is the lagginess and freeziing that comes when trying to edit very large programs using less that top-notch computer hardware. I present for the Jury - working at a customer site today tryingto edit a behomoth of a 65k+ line program (way to large for SEU) and RDi on the an HP desktop with 2GB memory. Open RDi... wait... wait... open source member... wait some more.... get into code changes and then it all locks up for 30 seconds while the LIVE PARSING procedures tries to figure out all the variables.
Luckliy we can turn it off!!
Window > Preferences > Remote Systems > Remote Systems LPEX Editor > ILE RPG (or type ILE RPG into the shortcut in the preferences window)
Look near the bottom and you will see 'Update the Outline View when text is changed in the editor'.
Turn it off and RDi way faster and smoother.