---
title: "Simultaneous User Sessions on Shared Machines"
canonical: "https://documentation.chaos.com/space/ESKETCHUP/818741251/Simultaneous%20User%20Sessions%20on%20Shared%20Machines"
format: markdown
---
This article provides information for IT Administrators on how to configure and manage simultaneous user sessions across multiple OS accounts on shared machines running Enscape.

## Overview 

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Enscape supports simultaneous user sessions on shared machines, allowing multiple OS accounts on the same system to run Enscape independently and concurrently. As of Cosmos v.2026.3.25.1000, Cosmos supports multi-user environments without requiring per-account installation. This article outlines the setup requirements and known limitations for shared workstations and lab environments.

> ⚠️ Simultaneous user session support requires the latest available versions of ULA and Cosmos. Ensure both are up to date before configuring shared machines.


## Cosmos 

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Cosmos supports simultaneous user sessions on shared machines. As of Cosmos v.2026.3.25.1000, no per-account installation is required.

All accounts on the same machine access Cosmos without additional setup.

It is recommended to configure a shared Cosmos asset folder to avoid redundant downloads and reduce disk usage.


## Assets Folder — All Platforms 

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Configure all accounts on the same machine to use a shared Cosmos asset folder. Assets download once and remain available to all accounts on the system.

The Cosmos asset folder can be configured through the Cosmos UI or via post-install scripts for IT-managed environments.

For step-by-step instructions, see the [Cosmos documentation](https://documentation.chaos.com/space/COSMOS).

### **Recommended configuration**

Set the Cosmos asset path for each account to the same local directory:

- **Windows:** `C:\EnscapeSharedAssets`
- **macOS:** `/Shared/EnscapeAssets`

> ⚠️ The shared folder requires read and write permissions for all accounts running Enscape.

By default, each OS account maintains a separate assets folder. On shared machines, this results in duplicate downloads per account and increased disk usage.

## Cloud Client (Scene Upload) 

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The Chaos Cloud Client is required to use the **3D Streaming** feature, which uploads and shares Enscape scenes through Chaos Cloud.

The client installs per OS account on both Windows and macOS. No system-wide installation is available.

Install the Chaos Cloud Client by:

- running the Enscape installer again
- downloading it from [https://cloud.chaos.com/](https://cloud.chaos.com/)


## Known Limitations 

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- If a shared Cosmos asset folder is not configured, each OS account downloads assets separately. This increases disk usage and duplicates content across accounts.


## CAD Plugin Registration Limitations 

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### Windows

Enscape installs into machine-wide directories for all supported CAD applications. A single installation is sufficient, and newly created OS accounts automatically have access to the plugins.

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### macOS

Enscape installs into machine-wide directories for:

- Vectorworks
- SketchUp

For the following applications, installation is required per OS account:

- Rhino
- Archicad

> ℹ️ System-wide installation for **Archicad **is planned.

> ℹ️ System-wide installation for **Rhino **is under discussion, with no confirmed timeline.