I have a scene where I need to scatter some volumes that I've created onto the engines of a spacecraft model I've been given - Each engine has it's own pathname, so for example the right engine would be something like /“shipName”_GRP/r_wing_GRP/r_mainBooster_GEO/r_mainBooster_GEOShape and the left engine would be the same but with “L” instead.

How would I go about copying my volume to the centre point of each engine procedurally?

Thanks in advance!

Do you have them in SOPs? If not use an object merge, with settings to packed and keep path as attribute.

Then, in a point wrangle (I think the path attrib is point, if I'm wrong and it's a prim attrib use a prim wrangler and @primnum instead):
if(find(s@path, ‘mainBooster’) <0)removepoint(0,@ptnum);

That should give you points to copy to.

Or you can use Blast SOP and in Group parm type something like
no spaces (it can contain exact attribute value or pattern as you see above)

choose group type based on attrib type
and check Delete Non Selected