Best way to export/import particle systems?

I have played a little bit with the new particle system. I generated some interesting systems in a empty Visionaire file. And now I want use some of these systems in an other game. How I can export and import my particle systems? I can "copy" it but in a new opened file I can not paste it.

Ah, with Strg+V it works. If the list is empty, the there is no right-click menu for "paste".

Would be nice to have tooltips inside the particle editor for each over-time-diagram. Some preferences (weight?) are not self explanatory. And please: Please add the units of the settings (some settings mean percent, some settings mean degrees, some settings mean milliseconds, some settings mean a number, and what is for example the speed from 0 to 50? pixel per millisecond? an what means lifetime from 0 to 10? and is the emision number in particles per millisecond?)