Well, we tested it so many times, fixed bugs, added new features, updated for new Blender versions, we can say it is pretty good and stable. However you may need something that can be added, or you encounter a nasty bug, in this case do not hestiate to contact us.

The viewport render animation data is managed differently. It is separated from the normal render data in Blender so our add-on isn't able to use it unfortunately.

Of course you can! If you send your ideas to us and they are really useful or funny or even fancier than the default ones we will implement them to the next version. We will really appreciate it. Thanks in advance. Other requirements are also welcomed!