Is it possible to add adjustment reason in absence plan

Summary

Is it possible to add adjustment reason in absence plan

Content

We need to add adjustment reason in absence plan under Entries and Balances tab.

We have option to enable adjustment, as a standard functionality, we can see two list of values as adjustment reasons(Clerical and compensatory) but need add more reasons. Do we have any lookup to add more adjustment reason.If yes,please let me know.