The Elementor page builder includes these main areas:

1. Panel (Top): Use the search field to find a widget.
2. Widgets / Widget Settings: Choose a widget and configure it.
3. Preview Button: Enables you to preview the page. Once clicked it hides/shows the panel.
4. Panel (Bottom): View page, Go back to Dashboard or Save the page.
5. Content Area: Drag & drop widgets and design your page.
6. Add New Section / Add Template: Choose between creating a new section or inserting an existing tem

Setting full width page or a page with sidebar

You can set a custom template for a page on the right side of the page editor in Page Attributes drop down section.
You’ll be able to choose such templates from the list:
Default Template
Elementor Canvas
Elementor Full Width
Full Width

Default Template is the primary one and is used in WordPress themes by default. If you want to have a page with sidebar, you should choose this template.

Elementor Canvas adds a possibility to create a landing page easily.
When you select this template, header and footer sections are removed and no need to use custom css or any other options to delete them. With Elementor Canvas you’ll have a blank page which you can make a Maintenance/Coming Soon page and no need to use any plugin.

More details about this template can be found in the Elementor documentation and Introducing Canvas article.

It is also described in Elementor documentation: Using Elementor’s Full Width Page Template and How To Create a Full Width Page Using Elementor articles.

Full Width is default {themename} template. It functions the same as Elementor Full Width template. The only point Full Width template is available for all page builders unlike the Elementor Full Width template appears when you activate Elementor plugin.

Click the content to edit, duplicate or delete a widget. You can also save it as a Global Widget. Add Widget: Drag a widget from the left panel and drop it into a column.
1. To edit a widget, click the pencil icon.
2. On the Panel header, you can choose to edit the
widget’s content and style. 3. Every widget has a different setting.
4. You can save your current changes at any stage.
5. When you have finished designing, click the ‘X’ button at the bottom panel and view the page.
A section is the most basic element that you can work with. It’s the building block of every page. A section can be set as full width and spread all over the screen, or receive the content area width (by default).
After you create a section you can drag and drop a widget inside. You can also divide each section to few columns. Every page you create can contain as many sections as you want. You can drag a section above or under another one to relocate it.
1.Add New Section: Click this button to create a new section or simply drag a widget from the panel and drop it in the content area.
2.Select Yout Structure: Choose a structure for your section (Later, you can edit the exact width of every column). You can edit, duplicate or delete a section. You can also save it as a template or add a new section above.
Every section includes one or more columns. You are able to insert your content into each column. You can easily arrange and order the columns, simply by dragging and dropping them.
You can edit, duplicate, add, or delete a column. You can also drag & drop it anywhere on your page. Resize Column: Drag right & left to change the width of your columns.

Create a New Page

On the top left side of the WordPress dashboard, click Pages > Add New
Click Edit with Elementor to enter Elementor Page Builder

1.WordPress 5.0+ (Gutenberg) Compatibility. Use the ‘Edit with Elementor’ button within Gutenberg