Absence Type Hide from Hourly Employee but Display to HR to update

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Hi all, 

We have an absence type Vacation. We want to display this to salaried employees but not the hourly employees, however, we want HR to update the balance for hourly employees. 

We have created an eligibility and attached it to the absence type, however, when HR is loading balance for hourly employees they are getting that employees are not eligible. 

Is there a way that an absence type can be made available to salary employees in UI but not Hourly employees (we can do eligibility but then HR is not able to add as well)? Thank you!