ctrlC
https://mods.paradoxplaza.com/mods/81925/Windows
This mod lets you copy, paste and save stuff.
Features:
Circle Select/Deselection Tool: Easily select multiple objects in a circular area.
Filters for Circle Selection Tool: Customize your selection process with various filters.
Save custom AssetStamps: You can save and reuse you custom made parks, interchanges etc.