You must have noticed the new 'Edit' button/functionality on the standard forms like Sales table, Customer table etc. Below are the steps to enable the same on other forms or new customized forms:
1. Go to Form >> Design >> PropertiesModify the ViewEditMode as 'Auto'
2. Add a button group and a command button under the button group for Edit. It would be better to copy the same from some standard form like Sales Table
3. Modify the Command property of the command button to 'Edit Record: 4471'
Reopen the form and it should go !!!