You can embed them in a template file and then they will be available for all new jobs using that template but they will not be available in older/existing jobs.
You can copy & paste from your template to an existing job and they will become embedded in that job.
But probably the best way to go is to save all your objects into a folder on your company server (somewhere that everyone can access).
Then in Archicad you load this folder as a library.
Now you can add and delete objects from this library and they will update in each job automatically every time the job is re-opened or you issue a re-load library command in the library manager.
One of the forum moderators.
Versions 6.5 to 25
Dell XPS- i7-6700 @ 3.4Ghz, 16GB ram, GeForce GTX 960 (2GB), Windows 10
Dell Precision 3510 - i7 6820HQ @ 2.70GHz, 16GB RAM, AMD FirePro W5130M, Windows 10