[LV2] Plugin instance ID

[Iurie Nistor]

Hi,

Is there a way I can get the LV2 plugin instance ID? I mean when

the user adds the plugin into the track, is there any ID associated to 
this added instance, and

remains the same even after restarting the host?


I want to use this ID to store settings about the plugin instance. 
Actually, this can be stored

into the plugin state, but I am not sure if this is right because I want 
to store things like

last directory visited by the user when browsing (with plugin UI) presets

or samples, and this to be saved per plugin instance.


Iurie