Auto Cast Abilities

Some abilities can be auto cast. You can activate auto cast by right clicking on the icon, afterwards it will grey-black striped. The ability will then be activated once a specific setup is aligned.

How it works:

For Annas shot, several infantry units have to stand in a row to activate the ability. Once the setup accrues the ability will be casted and shot on the targets.
Below you can see an example. The left version is activated while the right one is deactivated.