Go to Setup-Settings- Schematic Editor - New Sheets.
You seem to be asking lots of basic questions, have you looked at going through the tutorial referenced on the start page or the evaluation guide available from here https://supportnet.mentor.com/downloads/related/expedition-productivity-tools.cfm ?
Both of these will answer many of the questions you have asked.
Thanks for your answer! Any chance you could reply with the tutorial and evaluation guide attached (hopefully, they are PDF documents)? There is kind of a lengthy process I need to go through before I can run an executable on my work computer.
Sorry, but that is not possible, as the executable for this Evaluation is an install that applies some system settings and database loads.