Hi Yaniv,

If you open the Transitions and Animations panel at the bottom of the screen in the Start state of a screen, you can add an opening animation (i.e., do something on load).

As for conditional, it depends on the condition. Indigo is flow based, so you can change the state of the screen based on user interactions, so anything that is conditional upon user interactions is supported. If you mean some invisible system state, then we currently don't have support for that, but you can usually simulate that by adding some UI that would trigger it. If you're interested in this, please consider voting for it and adding comments as to your specific cases that you think are important for us to support.