# Types of Compound Objects

## Compound Object Library

The [Compound Object Library] stores the template compound objects that you can use across multiple projects. To use a compound object in a project, drag and drop the compound object to the [Project Compound Objects] node, or directly to a screen or content in the project.

You can also create template compound objects under this node.

## Project Compound Objects

The [Project Compound Objects] node is a holder for compound objects in the current project. Like other graphic objects, drag and drop to place a project compound object onto the screen or content. The compound object appears in the [Project Compound Objects] node and in the Tool Chest. You cannot edit compound objects in the [Project Compound Objects] node.

Creating new compound objects is not possible in the [Project Compound Object]. Instead, copy and import compound objects from the [Compound Object Library].

The following describes the differences between the [Compound Object Library] and [Project Compound Object].

| Compound Object Library | Project Compound Object
Create | Yes | No
Open | Yes | No
Edit | Yes | No
View | Yes | Yes*1
Export and import | Yes | Yes
Copy and paste | Yes | Yes
Drag and drop between nodes | Yes | Yes
Drag and drop into project | Yes | Yes

*1 Only in Toolchest or in project as an object