If you no longer want a termination package applied to a pay run, you can remove it from being applied to that pay run.
You can then apply it again later, potentially to another pay run, or modify/delete it.
Opening menu on termination packages available to remove
The same process applies as when you applied the termination package except you only have one method to remove it.
Right click on any pay packet then select Remove Termination payments from Pay Run.
Removing termination package
All termination packages applied in the pay run will automatically be highlighted.
Make sure only those you want to remove remain selected then select Next then Finish in the next screen.