Indent a single line?

Using FCK Editor If I add three lines with a carraige return after each then the lines are wrapped in Paragraph tagsI...

<p>Line 1</p>
<p>Line 2</p>
<p>Line 3</p>

...giving double line spacing...

Line 1

Line 2

Line 3

...I want single line spacing so I use Shift and Carraige return after each line...

Line 1
Line 2
Line 3

...which give me the desired formatting. However, If I then select Line 2 and click the indent button it indents all three lines when I only want to indent the middle line.

I really need to have single line spacing and to be able to indent individual lines - is this possible

TIA - Kevin