[Info-vax] resource domain for the dummies

[Pierre]

in order not to have conflicts with resources names when I $ENQ locks,
I want to use a resource domain but I do not know what value to use in
$SET_RESOURCE_DOMAIN's domain_number arg

how can I create my own resource domain ? how can I list existing
ones ?

I tried to RTFM but did not find what I was looking for :( where all
this stuff documented ?

TIA,
Pierre.