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Version: 2.0.0-preview

Element Property

This tab stacks the drawables, sounds, and other engine objects contained in the element selected on the timeline (the unit corresponding to a *.belm file) and lets you edit them vertically. The element's own name, color, start time, and other timeline-level attributes are managed from the timeline; this tab is where you build out the element's contents.

Tab characteristics​

  • Open by default: Yes
  • Allow multiple instances: No

How to open​

Open it from the menu bar via View → Tools → Element Property.

When you click an element on the timeline to select it, that element's contents appear in this tab. Nothing is shown when no element is selected.

Layout​

The objects contained in the selected element are listed vertically as expandable panels. Each panel consists of the following parts.

  • Reorder handle (dots at the far left): Drag vertically to change the object's order
  • Visibility toggle: Enable or disable the object
  • Name label: The object's type name (hover to see a tooltip with its description)
  • Expand/collapse button: Click to open or close the property area
  • Property area: Shows a dedicated editor for each property when expanded

If the element contains many objects, scroll the tab vertically to browse them all.

Working with objects​

Reordering​

Drag the handle on the left edge of a panel up or down to rearrange objects within the same element. The order directly affects the order in which drawing and effects are applied.

Toggling enabled / disabled​

Use the eye icon in the header (the visibility toggle) to enable or disable the object. Disabled objects are excluded from drawing and processing.

Expanding / collapsing​

Click the button at the right end of the header to open or close the property area. The expand/collapse state is saved per element and restored the next time you open the same element.

Right-click menu (on a panel header)​

ItemAction
RemoveRemoves this object from the element
Save as TemplateNames the object and registers it in the library as a template

Adding objects​

Drag and drop from the library​

Drop items (drawables, sounds, etc.) from the Library onto this tab to add objects to the selected element. The drop position determines where the new object is inserted.

Editing properties​

Expanding an object reveals a per-property editor.

For animated properties, use the vertical three-dot menu (⋮) on the right side of the property to open the Graph Editor or to inline-expand the animation onto the timeline.

Scrubbing number values​

Drag horizontally on a number field to scrub its value up or down. Hold Shift while scrubbing for coarse steps (10×) or Alt for fine steps (0.1×).

Objects of unknown type​

When the object's type cannot be resolved — for example because the providing extension is not installed — the view falls back to a placeholder. It shows the original type name along with a command bar for editing and saving the JSON directly, so you can still inspect and make minimal fixes on the spot.

Source​