An additional feature for Time-off at Hyra could be 'Holiday Allowances".

Workplace admins would be able to set certain pre-determined limits for holidays, dependant on the role.

They would have options, for example: Allow [X] day(s) holiday, every [MONTH, QUATER, YEAR] for [X] role(s). Of course users would still be able to request more days from Management.

Other considerations for this feature may also include 'Personal Days'.

I have attached a picture concept from an Employee Point of View, to help illustrate my idea.