To indent a line or more of text, highlight the line or block completely, then click the Increase Indentation icon or press Ctrl+M.
This will indent the text to a depth of one tab from the left hand margin.
You can indent the text as many tab stops as you wish by repeatedly clicking the Increase Indentation icon. Likewise, you can reverse this process in steps by clicking the Decrease Indentation (sometimes called Outdent) icon or press Shift+Ctrl+M.
There are currently no shortcut keys associated with these commands.
Default tab size
The default tab size (in centimeters or inches) can be set in Main menu ⁄ View ⁄ Options ⁄ Article ⁄ Tabs,indents. You can choose the units for this measurement by going to Main menu ⁄ View ⁄ Options ⁄ Units and choosing Centimeters or Inches. Thus the default tab size determines both the tab size and the paragraph indentation.
The default tab size is not file-specific. If you changed the default tab size since the last time you opened the file, text you indent now will not be aligned with previously indented text, so it is best to keep the same default tab size for all files and note the setting for a particular file if it differs.
Undoing paragraph formatting
Handy hint: If you press Ctrl+M before inserting text to be indented, this will indent the text as it is inserted and save you the trouble of having to re-highlight it and indent it afterwards.