Some have had difficulty adding text or finding how to change the size colour, font etc of text and Dimensions so the images below may help.
Overall text settings can be changed in the Tools/Text menu. You can use the same Dialog box to add text to the plan.
Dimension can be changed also under Settings/Dimensions Settings and double-click the example text for even more settings.
Individual dimensions or text can also be changed separately by double-clicking the dimension itself in the plan and again double click the example text box.
Allan