[meghane_e]

One quick question(not solution):
I've created a custom column, #date_added, using 'Column built from other columns' set to {timestamp}. If the timestamp changes, will the #date_added column also change? Is it overkill to make a second custom column that I basically save a copy of the #date_added fields (Bulk Search/Replace copy)?
Thanks!

I guess my plan now is:
a. Start with Library A (earliest one).
b. In Library A in Control Adding books, setup Adding Actions, 'Create new record for each duplicate format'. Research 'Rules to filter added files' to see about date comparing.
c. Copy Library B to Library A.
d. At least this way, after merging two Libraries, even if the timestamps are changed, I have the originals.