An operation is an action applied on a selection of Data Type items. Operations can be categorized into different groups based on their characteristics:

Depending on the Data Type, operations can be:

Depending on the target of action, operations can be:

  • Built-in Property — changes the Blender properties' value directly.
  • Custom — performs broader, more complex actions on Blender data.

Built-in Property Operation

Built-in Property Operations change the value of a specific Blender data property.

Fake User is an example of a shared built-in property operation.

Custom Operation

Custom Operations perform more complex actions on Blender data that may involve modifying one or more properties.

In this example, we have two Material items enabled in the list. We can use the Link To Collection operation to quickly find and link to a new Collection all Objects that use at least one of these Materials.

Operation Properties

Some operations may have additional properties that can be configured before executing the operation. In most cases, these properties can also be adjusted in the undo/redo panel in the lower left corner of the screen after having run the operation.

Properties of a shared Link to Collection operation.

Operation Operators

Operations can have one of several possible modification operators depending on the value the operation modifies. Below is a list of modified values and what operators are available to them:

  • Enum, String, Pointer:
    • Set Equal

      An example of a Set Equal operator in a Material Slot operation that assigns a Material to the Material Slot.

  • Float, Integer, Float Vector, Integer Vector, Color:
    • Set Equal
    • Keep — keep the old value.
    • Add
    • Subtract
    • Multiply
    • Divide

      An example of float, integer, float vector, integer vector, and color operators in an Object operation that modifies its Scale value.

Operation Rules

When selecting an operation, it will always show a confirmation popup. If the operation contains customization properties, they can be adjusted here before proceeding.

You can hold the Ctrl or Cmd (for Mac) button when clicking on the operation to execute it without invoking the confirmatory popup. If you have run this operation recently, the previously used property settings will be used. If you haven't run it recently, the default values will be used.

Depending on the operation, it can work on:

Most operations work on either all displayed or all enabled list items (depending on the multiselect mode). In cases where the operation works on the highlighted item (e.g, Set Active operation), there is an option for it in its confirmatory popup.

Operations work on list items from top to bottom.

Because operations work on list items from top to bottom, there are cases where, at first glance, the operation result may appear incorrect. Image we have a mesh with three UV maps named Lightmap, UVMap, and Detail, and we want to move the UV map named Lightmap down to the second position. We can do that by using the Move operation with its Down option.

Remember that operations work on each item in the list from top to bottom. We currently have all three UV maps enabled, so the operation will move each UV map down, one by one. The end result will be that they all will end up at their original position:

  • First, Lightmap is moved from position 1 to position 2. As a consequence, UVMap switches from its position 2 to position 1.
  • Then, UVMap is moved from position 1 to position 2. This reverses the previous result.
  • Last, Detail is already at the last position—it can't be moved down, and is left in its place.

If all UV Map list items are enabled, the Move operation will move each one of them from the top, and each UV map will end up in their original positions.

To avoid this, make sure to disable the other UV maps and keep enabled only the ones you want to move.

An example of a Move operation for UV Map Data Type. Only the UV map we want to move is enabled.

Operation Menu

Operation menu can be accessed from the Data Type list controls.

Operation menu button, highlighted by a red square, can be used to choose an operation to execute.

Operation menu is divided into two parts:

  1. Built-in property operations
  2. Custom operations

Operation menu is divided in two halves. 1. Built-in property operations. 2. Custom operations.

Operation Report

Operation Report shows the log of the last run operation. It contains a list of operation report entries.

Operation report window in PACKED Data Manager.

Operation report can be accessed from the Settings bar in the Data Type Selection Interface.

Operation Report Entry

An operation report entry consists of:

Operation Outcome Indicator

An operation outcome indicator can be one of three types:

  • Success — the operation executed successfully. Color-coded green.
  • Warning — the operation executed successfully. Color-coded yellow.
  • Failure — the operation failed to execute. Color-coded red.

Operation Outcome Log Message

An operation outcome log message displays what was changed during the execution of the operation. In the event of a Warning or Failure outcome, the message may have additional information regarding the respective outcome.

List of Available Operations

You can see a reference of all available operations here.