> For the complete documentation index, see [llms.txt](https://help.auxalia.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.auxalia.com/plant-tools/plantexpresstools/how-to-use/assemblies/setup/adapt-symbols.md).

# Adapt Symbols

If you open Project Setup now, you will see the new class or classes and the default symbol. A symbol is needed in order to later convert a polyline into an Assembly. This will be explained under [Usage](/plant-tools/plantexpresstools/how-to-use/assemblies/usage.md).

![](https://2994090777-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FZH2AGHzvPfBW7YdaaGc0%2Fuploads%2Fgit-blob-cc0284debdc03ed3c93291c08c7d7f293cbb79d4%2FPET-Assemblies-03.png?alt=media)

When the symbol is created we set following settings:

![](https://2994090777-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FZH2AGHzvPfBW7YdaaGc0%2Fuploads%2Fgit-blob-85a8bc40a7ed8039fdb479b9eb43063644cb59e5%2FPET-Assemblies-142.png?alt=media)

For the Symbol Properties we set color, layer, linetype. Everything you know from setting these properties for P\&ID symbols applies here as well. The Assembly classes behave like any other class with symbols.

You also should change the "Tagging prompt" from "Not a tagged component" to one of the other two choices. Otherwise you won't be able to Tag the Assembly.

![](https://2994090777-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FZH2AGHzvPfBW7YdaaGc0%2Fuploads%2Fgit-blob-1c09054187a8a332c4df0e5d979f18d9a6937ceb%2FPET-Assemblies-06.png?alt=media)

Color, Linetype, and Lineweight are set to ByBlock. Adapt this if need.

![](https://2994090777-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FZH2AGHzvPfBW7YdaaGc0%2Fuploads%2Fgit-blob-57eeb3587947e4e7576d49173c2d11c5899d27a1%2FPET-Assemblies-144.png?alt=media)