it used to be that way, but now it insta-casts on your target. Whatever the console equivalent of Tab Targeting is, you need to do that to set your target before dropping your Nova, if you want complete control over where it lands. Otherwise it drops wherever your cursor is targeting.@Azalin76
I do believe you have to click the ultimate buttons once, then that brings up the gold circle you can place any where you want, then click the ultimate buttons again and it should cast the nova.
It has been a quick minute since I used Nova, but if i remember correctly, it should work like every other ground placed spell.
Thanks for the advice, I will try it out and work on getting the hang of it.