> For the complete documentation index, see [llms.txt](https://docs.diracinc.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.diracinc.com/videos/tutorials/structure-and-organization/creating-combinations.md). # Creating Combinations {% embed url="" %} ### What this allows you to do Group pre-purchased or pre-assembled components into a single install step - reducing instruction granularity while keeping your underlying CAD structure intact. ### When to Use Combinations Use combinations when: * A group of parts arrives pre-assembled * Components are installed together in one action * The internal structure is irrelevant to the operator * You want to simplify instructions without losing part traceability Combinations are typically defined in Model View early in the workflow to establish correct hierarchy before sequencing. ### What Combinations Do Combinations allow you to: * Treat multiple internal CAD components as one logical unit * Install that unit in a single step * Reduce the number of instruction steps * Preserve full design detail behind the scenes This keeps your instructions focused on what operators actually need to do. ### Creating Combinations #### Create a Combination from Model View * Multi-select the components you want to group * Right-click and choose **Create Combination** #### Converting Existing Phantoms * BuildOS automatically pulls in design phantoms from your CAD file * Any of these can be **converted to combinations** with a right-click * Useful when design structure doesn’t match manufacturing reality ### Key Tips * Use combinations for “install as one unit” scenarios * Internal CAD detail is preserved for traceability * Combining before sequencing keeps instruction authoring clean