Altium Designer Documentation

Selection Memory (PCB)

Created: July 7, 2022 | Updated: July 7, 2022
Applies to Altium Designer version: 22

The Selection Memory dialog
The Selection Memory dialog


The Selection Memory dialog allows you to store selected objects to memory and then recall these selections from memory.

The Selection Memory related commands can be found in the Edit » Selection Memory sub-menu.


This dialog can be accessed from the PCB editor by pressing the Ctrl+Q shortcut keys.


Note that the shortcut keys will not work if another dialog is currently open.
  • STO - click an STO # button to store the current selection in that memory slot.
  • Clear - click to clear the related memory slot.
  • Apply - click to highlight the related memory contents.
  • RCL - click to select the related memory contents.
  • Memory Slot Status - there are eight memory slots. This field will show the current status for these memory slots (e.g., Empty, 1 Component, 10 Tracks, etc.).
  • Lock - check this box to lock the selected objects into selection memory.
  • Mask - when enabled, all objects not falling under the scope of the filter will be masked.
  • Select - when enabled, the filtered objects will be selected in the workspace.
  • Zoom - when enabled, the filtered objects will be zoomed and centered (where possible) in the library editor window. The zoom action can be determined by the Zoom Library Components options set on the Schematic - Library AutoZoom page of the Preferences dialog.
  • Clear Existing - when enabled, previous selections will be cleared.
  • Clear - click to clear the selection status of any selected objects in document.
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