Scrollbar, 'current document folder' and UI questions

[SamKr]

Great tool, loving it, there are just three things I can't seem to get sorted:

- The vertical scrollbar has a preview pane next to it, to easily see where you are in the document. Can this be hidden? It takes up a lot of my screen estate.
- Is there an option to always switch to 'current document folder' in the file explorer pane, when a document is opened but also when I switch tabs?
- There's a vertical line going through my documents, I think it's a print cutoff or something? Can this be hidden? I've attached a screenshot.

Thanks for the help.

[pjj]

Ad 1: There are Document Map and Annotation Bar; both can be shown/hidden from menu View (there are also icons in the main toolbar and you can associate a shortcut to it; and then some more settings in Options).

Ad 2: no idea I don't use explorer, prefer project tree.

Ad 3: Goto Options > Highlight and margins > choose first tab (Source) and set right margin to -1 (you can use this right margin for wrapping long lines).