We released some improvements when importing Salesforce metadata.
We revamped the menu to create a new project. Our goal is to make it easier to select the right tool to create the prototype you need. This new menu gives you access to:
Prototyping actions on your Lightning application prototype now led to fully-functional simulations (when creating or updating a record). You can focus on creating delightful Salesforce-like user experiences. Testing through simulations will reduce rework and boost user adoption of your final app.
You can now control when a component appears on a page by adding filter conditions and logic to its properties in the right panel. It's similar to the dynamic Lightning Pages on Salesforce.
For example, you can add a filter that causes a specific component on an opportunity page to display when the opportunity’s amount is greater than or equal to $1 million.