I’m not sure about Elements.. In PP you can position text in the Titler with the Selection Tool – the black arrow. Or, with the title selected in the timeline, use the Motion parameter in the Effect Controls tab. Or, use the Selection Tool directly on the the Monitor.
You can also use the Motion control to resize/position the clip, but you should use Video Effects/Distort/Transform, for higher quality.
Hope this helps.
Vince