In WordPress Dashboard go to Appearance submenu and click on Customize.
After clicking on customizing you will in theme Customizer.
Here you have to click on Page Template than About Page
In Setting, you can hide and show the Team & Client Section in About Page by clicking on hide/show button.
Go to Customize -> Page Template -> About Page -> Setting
In WordPress Dashboard go to Appearance submenu and click on Customize.
After clicking on customizing you will in theme Customizer.
Here you have to click on Page Template than About Page
In About Us, you can Change Title & Subtitle, Description, Button Label & Button Link.
Go to Customize -> Page Template -> About Page -> About Us
In WordPress Dashboard go to Appearance submenu and click on Customize.
After clicking on customizing you will in theme Customizer.
Here you have to click on Page Template than About Page
In About Us, you can manage About Page Video & Video Section Image.
Go to Customize -> Page Template -> About Page -> About Us
In WordPress Dashboard go to Appearance submenu and click on Customize.
After clicking on customizing you will in theme Customizer.
Here you have to click on Page Template than About Page
In welcome section, you can manage Skill Section Title & Section Description of About Page.
Go to Customize -> Page Template -> About Page -> welcome section -> Section Title & Section Description
You have to use Welcome Image Size 356Px X 239Px