A few scripts for use in Zotero javascripts panel : paste code in panel and run.
These scripts are for my personal use, results must be checked on a test library before final use.
1 update callnumber : empty callnumber fields are replaced by record ID with custom prefix string and database type (Zotero) identifier. A few categories without callnumber field are excluded, there may be some others not included here.
2 delete notes according to content : notes containing a custom string are automatically deleted.