# Part lists In the IDM format there is a separate section containing PartLists, which can be referenced from the Items in the Series using the PART\_LIST\_KEY. The PartList elements can contain one or multiple PART\_LIST\_POS elements, which reference an item to be added to the part list. They also reference an order (SEQUENCE), which we are currently not using. It also contains a reference to a Decision from IDMDecisions, which gives us the logic regarding how many of the referenced items must be added to the part list. For example: An table set contains one table and a different number of chairs, depending on the size of the table. All items in the partlist are added as subcomponents, with the numberInPartlist being linked to the onUpdate, in which the logic from the linked IDMDecision is added. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.roomle.com/rubens/content-creation/idm/idmpartlists.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.