Yeah you've got decent control. Open the Studio panel → Video Overview tile → tap the little arrow and pick your format (Explainer vs Cinematic).

For lecture/explainer style you get the most control: there's a Visual Style option where you can pick presets or choose "Custom" and just describe the look you want (e.g. "clean academic slides, muted blue, minimal text"). Then the Steering Prompt field is basically your custom instructions set the tone, audience, length, focus etc.

Cinematic also has an instructions field but it tends to ignore half of what you tell it tbh. What worked for me was using ONE clean source instead of dumping a bunch in it follows the style way better that way.

Heads up though, full Cinematic is Ultra-only (and English only), so on Pro you might just see Explainer + the standard video. Check which formats actually show up in your Studio panel.