Holdings import profile missing ability to strip 945/949 field

In 3.x releases when importing items through Vandelay, the holdings import profile is missing the checkbox where there was an option to 'keep' the 945 or 949 fields as records were loaded. Prior to 3.0, in the 2.x releases when creating a holdings import profile in addition to the item attributes you added to the profile, there was a "Keep" checkbox in the list of attributes. This is did not get carried over to 3.x releases.

I found this is documentation for release 2.7. I didn't have time right now to check out 2.8 or 2.9.
**Select the Keep box if Evergreen should keep this holdings tag in the record after it is imported. Otherwise, Evergreen will remove this holdings tag.**

Without this "keep" box left unchecked when I load in records with 945 fields, these fields remain in the record. This can be confusing to other catalogers attaching to the record.