Slide creation

When creating text boxes for a slide it does not appear to be possible to separately format selected text. If you try to do this, all of the text in the text box is changed, not just the selected text.
Is there a way round this?

That is possible in "Songs", but not Slides yet. We plan to offer that in an upcoming release later this year.

For now many users use Google Slides or PowerPoint to achieve more complex formatting.

We have responsive reading slides, so I need to have some text in italics and some text in bold...have been using Power Point to create slides and import them to the Media library. Would be great to have more control over slide formatting in the program itself.