Hello Danii,
1.For ESR Objects, you can do a Manual File .tpz Export - Import for your SWCV's from 7.0 to 7.4 ESR.
2. For ID objects you need to create/configure ICO's manually. You need to first create the corresponding BS in ID of 7.4.
Alternatively for ID, you can also use the Migration Tool provided. Check below link for Details:
Moving Integration Directory Artifacts from dual stack to single stack
Regards,
Azhar