Lock

Locking an activity area prevents accidental changes once its design and properties are finalised. A locked area cannot be edited, resized, or reassigned, but it can still be cloned to create dependent activity areas. Locking is useful when you want to preserve the integrity of a plan while continuing to make changes elsewhere.

When to lock an activity area

You should lock an activity area:

• After validating the geometry, mining direction, and dependencies.

• When the schedule is ready for execution and you want to prevent unintentional edits.

• When using On Demand calculation mode for large mined-out areas (these can be locked at any time).

How to lock or unlock an activity area

You can lock an activity area in two ways.

From the Properties panel:

1. Select the activity area in the 3D scene.

2. Open Properties > General.

3. Set Lock to Yes.

From the Activity Areas tab:

1. Select one or more activity areas in the grid.

2. Right-click and choose Locking > Lock/Unlock.

Rules and behaviour

When you lock an activity area, the following rules apply:

• An activity area can only be locked after it is fully evaluated, except when its calculation mode is set to On Demand.

• If an activity type is configured as Editable: No in Config, the area behaves as locked even if the Lock property is set to No.

• When locked:

  • The shape cannot be edited.

  • Mining level and activity type cannot be changed.

  • Dependencies, destinations, and resource assignments cannot be modified.

  • External changes (e.g., block model updates, grade control imports, pit limit adjustments) don’t affect the locked area.

What you can still do

Even when locked, you can:

• Clone the area to create dependent activity areas for other activities (e.g., Drill → Charge → Blast → Mine).

• View and report on the area in the Activity Areas tab and Gantt chart.