FanFicFare has some very powerful features for customizing story metadata and storing it custom columns. They are not, however, the most user friendly features in the world because I think like a programmer.
FanFicFare has set of 'standard' metadata it collects from all sites when it can. The 'standard' metadata entries can be saved to custom columns using GUI settings in FFF config's Custom Columns tab.
Many sites also have 'site specific' metadata entries collected. Those can also be saved to custom columns, but you have to use the
custom_columns_settings setting in FFF's personal.ini. (You have to enable it first with a checkbox at the bottom of the Custom Columns tab.)
Also in personal.ini you can use
replace_metadata and the include/exclude_metadata setting to filter and change what's included in various metadata entries.
There are several pages on the details in the
project wiki as well as dozens of past posts about it all here in the MR thread. Search for
custom_columns_settings,
replace_metadata,
include_metadata_pre, etc.
Also be sure to look at the comments that go with those settings in plugin-defaults.ini, there's a button on the personal.ini setings tab, or view it in the project repo
here.