Running Action Group and Firing Question

I have put together a series of actions in a group, and would like them to work in succession of one and other, but it appears that Lectora insists that all of the actions within the group should happen at exactly the same time. Does anybody know of an easy way to make an action "hold off" until another one has completed it's firing? For example. Can I make a Play action for a sound effect wait until a move-to has completed?