ElasticsearchEngine doesn't care about Builder::$index

[Dadibom]

ElasticsearchEngine uses $this->index instead of $builder->index, which makes it impossible to search in different indices. It looks like $builder->index is null if you don't set it to something using the within-function, so you could probably just use this:

'index' => $builder->index ?: $this->index,

[ErickTamayo]

Right now we use different types of documents in the same index (specified in the scout config).

I agree that for searching with within() method is not handling the types correctly and will be fixed in an upcoming update.

As for having different indices for each model I probably will come with something as well.