You can bulk transfer stock to other bins via stock procurement in Advanced Warehouse Management.
Run a filtered stock list for the stock you wish to transfer, then in the ribbon select the report Stock List - Export.
Remove all columns in the spreadsheet except the Stock Code and Primary Bin. Update the bin, then import into Jim2 via Tools > Import Data > Stock.
At Step 3/4, click Synchronise to update the stock records.
Further information