Is there a way to pause draggable objects whilst a voiceover is running? I want my learners to listen to the voiceover before playing around with the drag and drop activity. 

Hi Ria,
Here's how to disable a Drag and Drop while audio is playing (showing a mask and an audio icon while the audio is playing, and then hiding those objects when the audio is finished) -  https://share.smartbuilder.com/public/support/disable-dnd-while-audio-feedback-is-playing.mp4

Sample file if needed - https://share.smartbuilder.com/public/support/disable-dnd-while-audio-is-playing.sb4

The same approach should be possible even if you're using one of our templates, you'll just create the mask and these custom actions on a new Action Canvas.