How to automatically Copy records from Table1 to Table2 after applying filter on Table1.

I want the trigger to be on click of a button. On clicking the button, delete all the records from the Table2 and copy the records from Table1 to Table2. Before copying, filter has to be applied on "Article Number" column in Table2 based on the Article number present in the record in some other table from where i am clicking the button. Copy only those filtered records.

I know we can use API_PurgeRecords to delete all the records in Table2. But i got stuck at how to copy the filtered records from Table1 to Table2. And that filter on Table1 should be dynamic filter as Article number changes from one record to another record from where i am clicking the button. 

If this just needs to work in a single concurrent user environment, you can set up a table with a single record and have a field there to hold the Focus Article Number. Then make a relationship to the detail records based on a reference field with a formula value of 1, and then then look that up down to the detail records.

Then, make a saved table to table import subject to the filer.

Then you would make a URL formula button which would do the following steps.

Write the Article number into the Focus table for record with Record ID# of 1. (As there only is one record there)

Purge table 2

Run the saved import.

Land the user somewhere, probably on table 2.

Thanks for the quick response,

 I didn't understand how to achieve this thing  "Make a saved table to table import subject to filter"  and   "Run the saved import" .

Can you please explain how to do that.