Welcome to our community, Saint_Mikey
This is more of a Captivate issue than a RoboHelp issue.
There seem to be multiple issues at work here so I'll try and
address them as I see them.
1. You said:
I want the reader to be able to play and stop when required.
That should be available as long as you have elected to
include a playback control from within Captivate. To enable or
disable the control, click Project > Skin > Playback Control
tab and ensure the Playback Control has been enabled.
2. You also said:
At the moment it just loops, as soon as the page is opened.
This seems to imply that the movie just begins playing and
you wish for it to be in a paused state until some action is
performed by the user. To do this, insert a Click Box or a Button
object on the first slide of your Captivate project. Either of
these objects will normally pause the project until the user
interacts.
Hopefully this helped you in some way.
Cheers... Rick