Expression Manager (PCB)

The Expression Manager dialog

Summary

The Expression Manager dialog provides controls related to filter history and favorites. You can view expression history, add/remove favorite expressions for easier filtering operation.

Access

The dialog is accessed in the following ways:

• In the PCB Filter panel or PCBLIB Filter panel, click the Favorites or History button.
• In the File-based Libraries Search dialog, click the Favorites or History button.

Options/Controls

Favorites Tab

• Favorites List - this is a list of Favorites representing query expressions. A query expression can be added from the History list (click on the History tab of this dialog). Choose a query favorite and then click the Apply Expression button to invoke the query library search.
• Remove - click to remove a highlighted query expression from the Favorites list.
• Rename - click to rename the Favorites name that represents the query expression.
• Edit - click to open the Edit Favorite dialog, which allows you to edit the specified query.

History Tab

The History tab of the Expression Manager dialog

Queries are added to the History tab of the Expression Manager dialog after they are built and applied on the PCB.

• Grid History - Every time a query expression is entered, it is stored in the History list for re-use. You can add the highlighted expressions to the Favorites list which can be re-used.
• Add To Favorites - The Favorites list is a tool that allows query expressions to be re-used. Click this button to add the selected expression to the Favorites list.
• Clear History - Click to clear out the history entries.
• Apply Expression - Click to transfer the highlighted expression to the Query window in which the query expression can be executed.
• Close - Click to exit the dialog without saving any changes.