> 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/plantspecdriven/how-to-use/use-cases/editing-line-segment-properties-pid/inserting-symbols-pid.md).

# Inserting Symbols (P\&ID)

This chapter and its sub chapters describe the behavior when inserting a symbol into a line segment which already has a spec and size assigned to it.

Table of Content:

* [Understanding Assigning Pipe Spec Data (P\&ID)](/plant-tools/plantspecdriven/how-to-use/use-cases/editing-line-segment-properties-pid/inserting-symbols-pid/understanding-assigning-pipe-spec-data-pid.md)
* [Understanding AutoPipe (P\&ID)](/plant-tools/plantspecdriven/how-to-use/use-cases/editing-line-segment-properties-pid/inserting-symbols-pid/understanding-autopipe-pid.md)
* [Understanding Fasteners (P\&ID)](/plant-tools/plantspecdriven/how-to-use/use-cases/editing-line-segment-properties-pid/inserting-symbols-pid/understanding-fasteners-pid.md)