What are the limitations to the creation and editing of text in ChemDraw iOS?

What are the limitations to the creation and editing of text in ChemDraw iOS?

The initial support of text has focussed on the ability to create simple captions, and edit basic properties of atom labels such as font and size. Currently, text support is limited to single line captions. Certain attributes such as superscript and subscript are not currently supported. Captions and atom labels are also currently restricted to a single style per caption - you cannot mix styles within an individual caption. Because of these limitations, care should be exercised in editing complex text within documents created via the desktop application.