You'll need two linked record fields that are directed to the same table. Let's take an example of Table 1 and Table 2. In Table 1, set up linked record fields - Field 1 and Field 2, both linked to Table 2.

In the first linked record field (Field 1), activate the Record Finder and deactivate the option for creating/editing records. This field will serve to select records, including those not generated by the user.

The second field (Field 2) is designated solely for creating records. In this field, ensure the Record Finder is turned off while enabling the capability to create and edit records.