Hi Kaik,
try this:
type your text.
draw a vertical line with the bezier tool (left-hand toolbar, fourth button down).
Select both the line and the text.
Go to 'text' pull-down menu and select 'fit text to path'.
Your text should now be vertical against the line.
There will several options shown on the top toolbar on how to show the text.
Good luck.
David,
Versatile Design UK