Test following scenario:
Test happy path scenraio to validate nothing got broken on import wizard.
At server restart, go directly to create CSR tab and verify user is able to proceed from where he/she left off. Complete the whole process that is, after create CSR go on to importing SSL certificates.
At server restart, go directly to Import SSL certificate and verify user is able to proceed from where he/she left off. Note: user should have CA and private key in the appropriate folders. Complete importing SSL certificates.