Hello,
1) You can choose the sidebar width while editing the page under 8theme Page layout options http://prntscr.com/uq1jhn
2) Do you want to add the gradient for the sidebar? Do I understand you right? We don’t have such option. You can do this only using custom CSS.
3) As I can see you have already done that http://prntscr.com/uq1ma6 Do you still need our help with this?
Regards
