Thx a lot , I will try it.
Just for understanding:
Do I understand it right ?
I´m at the source project content browser and do a right click on the particle system.
Then I choose asset actions and migrate to my target project ??
If so will the whole particle system with materials be copied into this folder or will I just add a link to the source datas ?
I ask because if I delete my test project the whole particle system will be lost too if I just got a link of it.