Making a SharePoint custom column visible in an edit list form

1. Go to the list you are interested in
2. Click Settings --> List Settings
3. Under General Settings --> Click Advance Settings
4. Click "Yes" for "Allow management of content types?"
5. Click "OK"
6. Click the list you are interested in under "Content Types"
7. Now Click "Add from existing site or list columns"
8. Click "Add >" to select the columns you want
9. Click "OK"
10. Go to the list you are interested in
11. Click Settings --> List Settings
12. Under General Settings --> Click Advance Settings
13. Click "No" for "Allow management of content types?"