Using the Write to Other Table Function for Copying Columns and Results for Additional Contacts

Hi there, I'm trying to use the write to other table function. Basically, I want to copy the first 20 or so columns and all of the results to this new table to I can look for additional contacts from it beyond what I've already found. The field matching seems easy enough (are there limits on how many you can match in one pull?). But, I'm not sure what the select a list from a column is or what I should be connecting that to. Everything I've tried has been invalid.