
Table Of Content
New in 2026
Quick Guide
Video Guides
Getting Started
UI Layout
Var Actor
Edit Scene
Designer
Other Features
Modes
Blueprints
Cost Tracking
Multi-Unit-Prj
Google Data Sheets
FAQ
Fix Bugs
Version History
Build In Cost Tracking
UI3 has build in Cost Tracking that gives the user an estimate of the cost of his choices in the scene.
Content:

Base and Unit Costs
Unit Costs
Base and Unit Costs are fixed costs for the unit or building. They can be set in the data for multi-unit projects. Or they can be set in the Unit Costs array with optional additional fixed costs.
DT Cost and Rooms List
The lists are taken from a data table. The index of the list is used to categorize the list or report.
No Charge Cost Group
Cost categorized with this ID will not be added to the total costs of the estimate.

Cost in Variation Actors
The cost in the Variation Actor can be set in the Choice Buttons, in the Mesh Buttons, or it can be a sum of both.
Data (and prices) can come from the connected data table or be set in the actor itself.
Price Behaviour
Where the price is been taken from and how it is calculated.
Choices Button
The price is set in the Choices Button Details.
Mesh Choices
The price is set in the Object Info array.

Cost in Info Actors
Price
Is set in the Object Info array
Cost Group ID
As defined in the data table set in the info map.
A cost group can be defined as No Charge where the cost is shown in the list but isn't added to the total of the unit.

Cost in Designer
The Price in the Designer is always bound to the Choice Button. It can be taken from a data table or the designer element itself.
Changing a scenario layout level can change the choices prices with it if the Target Variation Actor is set to stream in and out
Choice Price Override
This allows to override the prices set in the Choice Button array. A chair and table may have the same material choices but the prices are different. This separates the price from the rest of the choice button.

Cost Group Actor
BP_SDotUI3_CostGroup
This blueprint can add a list of cost items to the scene.
It can track additional costs for a layout by adding it into a streaming level.

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Documentation Archive 2025
Variation Actor Documentation