Please follow below steps:
1.When you want to put someone on status 2 during the creation of his/her de-briefing:
Within the de-briefing entry > ‘Modify Seafarers File Options’ section, click on the ‘Modify employee’s status’ tick box.
That should place them on status 2.
2.When you want to put someone on status 5 after completing his/her de-briefing:
Go back into the seafarers file > main page
And the from there click on the ‘Add to Standby Pool’ button
Follow the couple of simple steps and the seafarer will be placed on status 5