The help manual only describes public functions which we tries to keep supporting when upgrading Saola Animate. There’s other functions you can use but they’re not ensured to work in later versions.
In version 2, most of element properties can be set using the following method:
The background image position x, y property names are
'backgroundPositionX', 'backgroundPositionY' respectively. For example, to set background image position X of the image element
Regarding symbols, I’m not sure what do you mean. Can you please describe your issue in more details.