Ability to load interim employee historical contracts post go-live

Summary:

We have a situation wherein, we want to load interim history for Workers data as part of phased implementation during second wave of data migration.
We did this interim history migration successfully for Assignments and Work terms. And we wanted to understand if this is possible to load for contracts as well.

Content (please ensure you mask any confidential information):

For example, for EMP0001 has four contracts. Is it possible to load 0001, 0004 which are hire and latest contracts as part of Wave1 and then load or syncup all the four contracts as part of Wave2?

Contract Nbr Begin Date End Date Duration Duration Period Extension Extension Period Type