In some slides, you can change the text position. Control the position of the texts with the Text X-Position and Text Y-Position controls. In most slides, you also have a setting for text alignment. You find them in the slide setting menu right next to the text fields.
In some slides, for example, Simple Slide, you find the settings for text position under “slide settings”. The changes will be shown in the storyboard.
X-positions are left, center and right.
Y-positions are top, center and bottom.
For specific settings for text position, check the features for the slide you want to use.