Hæ! I am here to say suggest that ST add some more writer-friendly features to the text box thing in the project editor. My first suggestion is that you add italics, bold, and underline options to the text editor. My second suggestion is to add an option for “paragraph format” or something like that, so that it won’t run off the edge, and will auto-indent the 1st line.

Takk fyrir og bless!

1. your first suggestion was suggested already, here's the workarounds:
bold: use the outline.
italics: rotate it counterclockwise, squish it, rotate it back, then you have that
underline: self-explanatory using the line in the costume editor
2. Wouldn't there be an option to enable auto-indenting in your second suggestion?