1. Go to the About One Click Update Tab --> Click on Step 1
2. Click on Select Field(s) Button and Select required fields from Available Fileds and move to Selected Fields Then Click on Save & Close Button.
3. Click on Step 2 and Select object --> generated code --> copy on VisualForce page --> create a visualforce page inline on the required object's page layouts.
4. Follow the below steps to add a Visualforce page inline on page layouts.
Go to Setup > Customize > Account > Page Layouts.
Customize the desired page layout
Drag the empty section to the layout (select 1 column layout) and then drag (step 2 created) the visualforce page into this new section.
Set the height of the section to the desired height, based on the number of fields selected for One Click Update.