# Mass Changes (advanced)
The Make mass changes option can be used to quickly make bulk changes to multiple records.
WARNING -- Use With Care
This is a very powerful tool for manipulating your data; and, in general, using the Mass Changes Editor will not trigger any other logic around the change.
# Open the Mass Changes Editor
You can open the mass change editor from any report that supports editing.
Click the Options icon (3 dots in the upper-right corner) of the report and then click Make mass changes.
The Report menu is different from the Page menu.
Please ensure you are selecting the right one!
# Select Records to be Modified
Select the checkboxes for the records you want to modify. To select all records on a page, select the checkbox in the top-left corner of the grid beside the column headings.
If your report has multiple pages and you want to change all the records, then be sure to change the rows per page option to All first before selecting the items, especially if there are multiple pages of records to be affected.
Otherwise, only the records on the (first) page will be updated.
# Make Mass Changes to a Field
Click the Change selector box to see the list of available fields you can change. You are not limited to visible fields in the current view.
Select the field to be changed.
In the on selected records to box, enter the new value.
For some fields, you may need to choose a value from a pre-defined drop-down selection list.
Click the MODIFY RECORDS button.
The system will prompt you to confirm the changes.
If the field you changed appeared on the list/report view, you will see the changes that were made.
See below for some examples of how you could use the mass change editor.
# Toggling 'Exclude from Catalog' on all items
# Enable 'Allow Online Pre-bidding' For All Items