Restructure Structure using conversion table - FM2019

In our documents (structured), we use a Table Element (Notes) to insert notes. We've now decided to change the formatting of the notes, adding a line above and below the table. To achieve this, we've created a new Element (Remarks), which automatically inserts the LineBeforeNote, Notes and LineAfterNote Elements. When inserting the Remarks Element manually, we get the results we're after.

As you can image, we have several of these historical Notes that we need to convert to the new structure. I know we can use a Conversion Table to wrap the existing Notes Element in a Remarks Element. However, doing this results in the LineBeforeNote and LineAfterNote Elements missing. Is there a way to insert these as part of the Conversion, or do we have to go through all our documents and manually add the two additional elements?

We are not using XML or DITA - just Structured FM with an EDD.