specific page layout for record type lightning app builder

To make a field read-only or required, double-click the field in the page layout and select the appropriate checkbox.You can’t change the properties of elements in the palette. To change the properties of an element on the page layout, double-click the element or click the wrench icon ( ) next to it.To select multiple elements as a group, use Shift+click. To select multiple elements individually, use Ctrl+click.When working with the enhanced page layout editor: The palette contains the user interface elements that you can add to your page layout, such as fields, actions, buttons, links, and related lists. The enhanced page layout editor has two parts: a palette on the upper portion of the screen and the page layout on the lower portion of the screen. Choose the Page Layout Name you would like to edit (e.g.Choose the Object you would like to edit the Page Layout for (e.g.Below are the instructions on how to change existing Page Layouts and some best practices around making these updates. Salesforce allows for customization of these page layouts so that they work best for your firm. Page Layouts are the views that your users see on your Elements Objects, like Relationships, Contact, Portfolios, and Financial Accounts.

Specific page layout for record type lightning app builder