Settings

Here you can select/deselect options such as:

Smooth Scrolling: True if smooth scrolling of window contents is enabled when the window is scrolled up/down by one line or left/right by one character.

Show Left Margin: This options allows to show/hide the left margin in the Code Editor window.

Line Tooltips on Scroll: This command used to show or hide the tooltips of line number on scroll.

Enable Virtual Space: This command is used to determine if the text caret can be positioned beyond the end of a line of text

Color Syntax Highlighting: If this options is enabled, the color syntax highlighting rules for the particular language you are using will be applied.

Show Horizontal Scrollbar: When there is a tick in this checkbox, the horizontal scrollbar will be enabled in the Code Editor window.

Show Vertical Scrollbar: When there is a tick in this checkbox, the vertical scrollbar will be enabled in the Code Editor window.

One Click URL Navigation: This commend is used to determine if a single click on a hyperlink will navigate the link.

Copy RTF Text to Clipboard: If this option is enabled, you will be able to copy text with formatting (i.e. RTF) and when you paste it, the formatting will be reserved.

Brace Matching: Enable or disable automatic highlighting of matching braces.

Max undoable actions

Here you can select the number of undoable actions or leave the default value of unlimited.

Line Numbering

Here you can select if line numbering is used or not. If line numbering is used, you can select its style (i.e. Decimal, Binary, Octal, or Hex), as well as the start number (by default it is 0) You can also specify if selections in bold should be tracked or not.
When you make a change, click the Apply button to make it effective. When you are done, click the OK button to finish.