A user had a problem where "Modified" wasn't an option to filter on in one specific 'Shared Documents' Document Library
I unchecked the option so it wouldn't show on the Default View, with the plan to re-add it but now the option to add Modified isn't there anymore!
I know Modified is a default column but it shouldn't disappear as a column in View?
As this is the only document library that it happens to (so far) please can someone tell me what i did wrong?
Thanks