Add comments or reminders to Powerpoint Presentation
To add comments or reminders to Powerpoint Presentation either make use of the Notes section: View/Notes Page (or Alt+V/P) or Insert/Comment (Alt+I/M).
Insert Hyperlink in Powerpoint Slide
To add a hyperlink within a slide: Insert/Insert Hyperlink (or Ctrl+K) and find the file in the Look in panel.
Powerpoint Slidemaster
Slide Master to Format the whole presentation: View/Master/Slide Master or hold down the shift key as you hover over the mini-icons at the bottom left and click on the Normal view which becomes the slide master view.