This is configurable. I use it in my android fork that I use for creative writing, `write-xl` (in case you're interested, here: https://github.com/adamharrison/write-xl ; not really ready for public consumption). You can set the word wrapping configuration via your user plugin by doing:
If you want a bit better discoverability; you may want to try the `addons` release; it comes with a settings plugin that lays out all the settings in GUI so you don't have to go through digging through the source. Could be helpful if you just wanna poke around.