To allow employees to add their preferred Pronouns, this can be enabled within - 

Administration>Company>Settings>Display settings 

Under the heading for Employee Module - Changing the option for 'Gender pronoun support' to Yes. 

We have left this as a free text box so that employees are able to add the pronoun of their choice. 

They can update this within Self Service  > My Details > Personal Details 

This will then display where their name is used such as the Directory.