Green screens are great for quick and dirty command-line tools used by system administrators and programmers. But, if you are a newbie, a millenial or just a programmer who is not used to legacy green screens then IBM's Websphere Developement Studio Client for iSeries could be the perfect tool for you to develop IBM iSeries code.
WebSphere Development Studio Client (WDSC) is a set of application development tools designed for the IBM iSeries server. It offers user-friendly, easy-to-learn tools to an iSeries developer. You can save a lot of your time in writing iSeries code using WSDC than on the legacy SEU (Source Editing Utility).
Here is a link to download WSDC and for knowing more about it.Download and Update WebSphere Development Studio Client WDSC7 for free | I Think - Therefore "IBM i"