Employers often allow employees to overdraw PTO. This feature is already in Replicon. But the negative balance needs to be repaid by the employee. It should carry over until the negative balance has been repaid. Employers often zero out employee PTO on an annual basis. Right now, Replicon treats positive and negative balances the same when it comes to resetting it on an annual basis. Please consider allowing negative balances to be carried over while resetting positive balances.