You could try to enhance the file at https://github.com/BlackBulletIV/enhanced-lua.tmbundle/blob/master/Syntaxes/Lua%20(Love).tmLanguage

Unfortunately, this seems to be a limitation of keyboard support in iOS.

Even in Pages, when I press page down on my bluetooth keyboard, it jumps to the end of the file.

I see. I'm using Sublime Text 2, so I guess this is very similar to the View -> Layout menu?

Where exactly do I find this feature in Sublime Text?

For local preview, Textastic doesn't use http but its own preview protocol (urls internally start with "preview://"). So you need to specify the http protocol since it would otherwise try to load the URL using the preview:// protocol which is only for local files.

This is very similar to the "file://" protocol for local files in desktop browsers. 

This should already work. Can you show me the code you're using?

Currently, only the $UUID variable is supported. It automatically creates a new uuid and inserts it.

I'll consider adding more variables in the future.

You can discern folders from files not only by the icon, but also by the gray chevron on the right side of the folder name and the fact that it doesn't have a time stamp and file size.

Safari uses very similar icons with the same color for folders and bookmarks in its bookmarks list.

I don't plan to change that sorry.