Job Opening Fields - Rich Text

Job Opening Fields - Rich Text

I migrated to the new version (4?) of ZoHo Recruit.  I am trying to add a new field to my Job Openings layout and I want it to be a rich text field (just like the field I am typing in right now) so I can format the text, instead of just entering plain text.  I know the rich text field exists because one of my existing fields (Job Description) migrated over as a rich text field.  But I don't see rich text as a choice in the field type menu.  Or, I would like to change the field type on an existing field.  I have an existing field called "Skill set" which was a field from the previous version of ZoHo Recruit and it migrated over as a plain text field.  I really want it to be rich text. 

So, can I change my plain text "Skill set" field to rich text?  Or can I create a new rich text field and map the contents of "Skill set" to this new field?