> For the complete documentation index, see [llms.txt](https://docs.besmart.software/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.besmart.software/3d-modeling-and-design/cut-opening/opening-configurations/mep-openings-configurations/main-settings.md).
# Main Settings
Users will be given default configurations that will help to get started with the Cut Opening (1)
New configurations can be created, and existing ones can be renamed or duplicated (2)
Cut Opening configurations are divided into different segments allowing the user to set the Main Settings, Insulation thicknesses for Pipes and Ducts, and individual settings for different MEP line-based elements‘ system classifications (3)
Cut Opening supports the following element categories and system classifications:
**Duct: Rectangular**, **Round**, **Oval**;
**Pipe: 1) Fire Protection** supports Fire Protection Dry, Fire Protection Other, Fire Protection Pre-Action, Fire Protection Wet system classifications; **2)** **Plumbing** supports Domestic Cold Water, Domestic Hot Water system classifications; **3)** **Sanitary** supports Sanitary, Vent system classifications; **4)** **Hydronic** supports Hydronic Supply, Hydronic Return system classifications; **5) Other** supports Other and all additionally created system classifications;
**Cable tray;**
**Conduit;**
**Beams;**
Default Shared Parameters file – Shared parameter file path on the user’s computer. The user is able to change the default shared parameter file or its path.
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