So everybody says you can't retime emitters without having to apply a drag behavior or export and reimport the emitter. Not so! Take a look at this tutorial which describes how to retime any particle emitter within Motion. Slow down, pause, speed up, reverse or loop a particle emitter within Motion the easy way - Clone & set speed.
When Motion3 was released and after the initial excitement had died down, it became obvious that there were a few features that hadn’t made the release. One of the first to be highlighted by the many forum posts was the lack of 3D text.
In this short tutorial, I’m going to give you some help in building 3D text in Motion. Yes it can be done, there are some limitations but hopefully this will get your text looking less flat and more 3D.
Tutorials 
Motion has been plagued by crashing giving reports that an "Ozone Plugin" was to blame. Here we look at a solution to the problem.