First up, why do you need to add information from rows that have existed already to a new table though?
You might have to construct either:
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An action that passes those rows’ info to Make.com to send a batch HTTP call to the Glide API, to add all rows in the destination table.
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Construct templates for HTTP calls’ body, then use the Call API action to do the same thing inside the app.
Both of those require paid plans. In the first case, a Pro plan. Second case, Business/Enterprise.