User blog comment:JustLeafy/The editors: Advantages and Disadvantages/@comment-4522253-20170328195200

To clarify a couple of points: Infobox Builder (the GUI editor) and InfoboxBuilder (the deprecated Lua extension) are two completely different things.

The GUI editor can not be used for Lua InfoboxBuilder templates (which were and are rare to find implemented in any case). The GUI editor can be used on multiple templates on a community, and multiple times on the same template (assuming that the source code for that infobox has not been altered in a way that the GUI can not recognize). There are limitations in the editor, such as the ability to handle horizontal and smart groups; if these are entered into the source, the template must be edited by the source editor thereafter.

Also, what you're calling the Advanced Source Editor should probably be called the Code Editor, as it is used also for CSS, JavaScript, and Lua (in addition to the XML-based Portable Infobox syntax). But as that sort of code is almost never actually edited on mobile, it is not intended for use on Android. However, that said, I'm one of the few who actually does frequently edit such code in Android (as part of my daily job functions) and I have not had any difficulty removing text that could not be solved with using a pointing device rather than a touch-screen interface.