@ElectricSylvain Have you seen any of the tutorials? We are using the zoom function often. See here. Scaler 3 - Timeline Zoom + Grid Request - #2 by davide
Copy and Paste you mean from one page to another? You can move anything to sketch and also drag down to section C and of course you can drag copy. I like the idea of a copy and paste but the paste part would not be straightforward. We will have a think.
And just click the lock key on the Explore page and it locks to your current scale. Change your current scale or use the semi.