@georgie you could do a gap fill using a fill in the blank graded question.
For templates, you have 2 options. If you made something that you’d like to save and use in a later project, you can go to file, save as, Storyline template.
Then, when you want to find it in a later project, go to the home tab, then New Slide, My templates.
If you are making a new project and want to set it up so some elements are on every slide, go to the View tab and open Slide Master.
You can add things to the slides here that will then appear on all your slides. Here is a short YouTube video to explain it. https://www.youtube.com/watch?v=SGozrXl7r9c
You can also control the release of info with states instead of triggers. First set the state to hidden.
Then set up a trigger, e.g.
It’s a bit more fiddly!