If you are integrating this into a production environment, you can use Quectel QFlash or QFirmware tools with a custom .bin file that contains the desired IMEI – this is the "install" part you might be looking for.
This is not a standard "install" feature for end-users. Quectel does not provide a one-click installer to change IMEI. Instead, it is a low-level diagnostic command feature. quectel change imei install
Changing an IMEI is strictly prohibited under laws governing telecommunications and device identification. If you are integrating this into a production