3 Questions About Selectable Objects

At last, a quick and easy question Can an object's (node) material attributes, say transparency for example, be animated for a selected object, or does this only work with transformations? I did a test and only got one of these to work.

Also - using the "interactive web application" as a starting point - is it possible to set such a scene so that the user can trigger all three animations at the same time? Similarly, would it be possible to have selecting one object trigger an animation in another?

First - yep, you can) We support animation of node value (as in Blender - just set the keys with I)

And value can be plugged in every grey input - such as color mix factor or alpha or others :)

And second - yeah, you can see it in the Christmas Card - but there is some coding required