> 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/understanding-assigning-pipe-spec-data-pid.md).

# Understanding Assigning Pipe Spec Data (P\&ID)

This chapter describes what happens when inserting a symbol into the line segment.

We use a very simple example with just a line segment with a given spec and size.

![](/files/TmnEOgZJGyXxzPhRkmdL)

Table of Content:

* [Inserting Inline Assets / Inline Instruments](/plant-tools/plantspecdriven/how-to-use/use-cases/editing-line-segment-properties-pid/inserting-symbols-pid/understanding-assigning-pipe-spec-data-pid/inserting-inline-assets-inline-instruments.md)
* [Inserting Reducers](/plant-tools/plantspecdriven/how-to-use/use-cases/editing-line-segment-properties-pid/inserting-symbols-pid/understanding-assigning-pipe-spec-data-pid/inserting-reducers.md)
* [Inserting Tees](/plant-tools/plantspecdriven/how-to-use/use-cases/editing-line-segment-properties-pid/inserting-symbols-pid/understanding-assigning-pipe-spec-data-pid/inserting-tees.md)
* [Updating assigned data on Spec/Size change](/plant-tools/plantspecdriven/how-to-use/use-cases/editing-line-segment-properties-pid/inserting-symbols-pid/understanding-assigning-pipe-spec-data-pid/updating-assigned-data-on-specsize-change.md)
* [Changing Key Property in Symbol (P\&ID)](/plant-tools/plantspecdriven/how-to-use/use-cases/editing-line-segment-properties-pid/inserting-symbols-pid/understanding-assigning-pipe-spec-data-pid/changing-key-property-in-symbol-pid.md)
* [Remove Assigned Pipe Spec Data](/plant-tools/plantspecdriven/how-to-use/use-cases/editing-line-segment-properties-pid/inserting-symbols-pid/understanding-assigning-pipe-spec-data-pid/remove-assigned-pipe-spec-data.md)
* [Assign Pipe Spec Data](/plant-tools/plantspecdriven/how-to-use/use-cases/editing-line-segment-properties-pid/inserting-symbols-pid/understanding-assigning-pipe-spec-data-pid/assign-pipe-spec-data.md)
* [Updating Assigned 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/updating-assigned-pipe-spec-data-pid.md)