Feature requests & ideas — post them here

[tumourlove]

Got a Monolith action you wish existed, or a gap in a namespace (UMG/ui_query, GAS, materials, animation, AI — any of them)? This is the place.

One idea per thread, so others can 👍 the ones they want most and I can track each separately. When you post, include:

• Namespace / tool — e.g. ui_query, gas_query, material_query
• What you're trying to do — the workflow or outcome
• A concrete example — e.g. "no way to put items in a UniformGridPanel"

I work through these between releases. Bugs still go in Issues; this board is for "I wish Monolith could do X".

[k-s-s]

Namespace / tool

ui_query / add_widget

What you're trying to do

Add a widget as a child of a specific non-root parent widget in the widget tree.

Concrete example

Adding a Border widget as a child of an Overlay named "MyOverlay" (which is itself a child of the root). The parent parameter is ignored ("Unknown param 'parent'"), and the widget is always added to the root. Workaround requires a second move_widget call with new_parent_name.

[k-s-s]

Namespace / tool

ui_query / set_widget_property — allowlist blocks common properties

What you're trying to do

Set standard UWidget properties (e.g., Visibility, RenderOpacity) on a widget without needing raw_mode.

Concrete example

Setting Visibility to SelfHitTestInvisible on a user widget class returns "NotInAllowlist" error. Requires passing raw_mode=true to bypass. Common layout/behavior properties should be on the allowlist by default.

[k-s-s]

Namespace / tool

ui_query / set_brush

What you're trying to do

Set the brush color/tint on a UBorder or UImage widget.

Concrete example

Calling set_brush with widget_name: "MyBorder" and color: {r:0, g:0, b:0, a:0.5} returns "Missing required param: property_name". The required parameters aren't documented in the action description. Workaround: use set_widget_property with raw_mode=true targeting BrushColor.

[k-s-s]

Namespace / tool

ui_query / set_slot_property + add_widget

What you're trying to do

Add a widget to a UniformGridPanel or GridPanel at a specific Row/Column position, or modify the Row/Column of an existing child in a grid panel.

Concrete example

After adding a widget to a UniformGridPanel via add_widget, there is no way to set the Row or Column on the resulting UniformGridSlot. set_slot_property only supports Canvas/BoxSlot properties (h_align, v_align, padding, etc.) — grid-specific slot properties (Row, Column, RowSpan, ColumnSpan) are not exposed. The dump_ui_spec action can READ UniformGridSlot data, but there's no corresponding write path.

[k-s-s]

Namespace / tool

blueprint_query / set_cdo_property — TMap with enum keys requires undocumented format

What you're trying to do

Set a TMap<EMyEnum, FLinearColor> CDO property via import text.

Concrete example

Setting a TMap property with enum keys. The describe_cdo_schema hint shows ((Key=K1,Value=V1)) but this format is rejected by ImportText. Multiple variations fail (Key=Normal, Key="Normal", (Key=Normal,Value=(...))) before discovering the undocumented working format: (("Normal", (R=1.0,G=1.0,B=1.0,A=1.0))). The correct format should be documented in the schema output.

[k-s-s]

Namespace / tool

blueprint_query / connect_pins — ambiguous node ID resolution across graphs

What you're trying to do

Connect pins between nodes in a specific function graph (not the EventGraph).

Concrete example

Connecting the then pin of K2Node_CallFunction_0 in a function graph named MyFunction. The tool resolves the node ID from the EventGraph instead (which has a different K2Node_CallFunction_0). Only works after explicitly passing graph_name — but the error message doesn't suggest this fix, it just says "pin not found".

[k-s-s]

Namespace / tool

blueprint_query / add_node — K2Node_SwitchEnum

What you're trying to do

Add a Switch on Enum node for a user-defined UENUM in a Blueprint graph.

Concrete example

Adding a K2Node_SwitchEnum for enum EMyCustomEnum (defined in a game module). The node is created but shows "Switch on (bad enum)" with no output exec pins for enum values. Passing the enum as /Script/MyModule.EMyCustomEnum via params.enum is flagged as "Unknown param".

[k-s-s]

Namespace / tool

blueprint_query / add_node — K2Node_CallFunction for Blueprint-defined functions

What you're trying to do

Add a function call node in a Blueprint graph that calls a function defined in the same (or another) Blueprint class.

Concrete example

Adding a call to a BP-defined function MyFunction in the EventGraph of the same Widget Blueprint. The node is created with title "None" and no pins — the function reference is never resolved. Tried path formats including ClassName:FunctionName, full asset path with _C suffix, and plain function name. Only native C++ UFUNCTIONs appear to resolve.

[tumourlove]

Shipped a batch of these in v0.21.0 — thanks @k-s-s for the detailed, reproducible write-ups, they made these easy to knock out:

• ui add_widget now accepts parent (alias for parent_name) so you can target a non-root panel directly.
• ui set_widget_property allowlists the common UWidget props (Visibility, RenderOpacity, ToolTipText, bIsEnabled, RenderTransform.*) — no more raw_mode for those.
• ui set_brush makes property_name optional (auto-resolves Image→Brush, Border→Background) and takes color as an alias for tint_color.
• ui set_slot_property writes grid slots (row/column/row_span/column_span) on UniformGrid/Grid.
• blueprint describe_cdo_schema emits the correct positional TMap hint, and add_variable/set_variable_type now parse map:enum:E:struct:S so enum-keyed/struct-valued maps are authorable.
• blueprint connect_pins disambiguates a node ID that exists in multiple graphs.
• blueprint add_node/resolve_node resolve user-defined UENUMs (SwitchEnum) and Blueprint-defined functions (CallFunction), not just native ones.

Release: https://github.com/tumourlove/monolith/releases/tag/v0.21.0 — the board stays open, keep the ideas coming.