Inserting a record into the middle of a subfile--suggestions?

I need to insert records into the middle of a subfile. The user can enter
a keyword that's attached to a long description and I need to get that
description into the body of the subfile.

I could add records to the end and then resequence when writing to the
database but that won't be satisfactory from a user experience
perspective--the user needs to see the full text in order as part of the
entry process. My subfile record length (including hidden fields) is about
400 bytes and I should have less that 50 records most of the time. I have
four 132-character subfile records on the screen and already have used the
fold/unfold option.

Copying the subfile to a variable-size array, inserting the records where
needed, and then reloading the subfile is an option.

Another option is to have A/B subfile control/detail set up records copy
from the "A" subfile (+ inserts) into the "B" subfile and then display the
"B" control record. SQL temporary tables and memory-resident tables are
possibilities also.

Where's a linked list when we really need it?

I'll be grateful for any suggestions and wish you all a Happy New Year.

thx...