Currently, there is not a "bulk import" function available to use with the Linux Collector.
Please note that the Optical Prime Linux Collector necessarily spawns an SSH connection for every target. Each of those SSH sessions will start to use up the memory. Since many Linux systems are configured with far lower amounts of memory than the typical Windows system, one has to be careful.
We suggest that if the collector host contains 2GB+ of RAM, 100 connections should collect without issue, but you will need to watch your memory consumption as you add devices. With smaller hosts, we don't recommend more than 25.
In cases where a greater quantity of targets is required, we suggest running multiple instances of the collector on independent hosts. We can aggregate the resulting SIOKIT files post-collection assuming the collections we started at roughly the same time, and that there are unique targets on each SIOKIT.