Multiple split support?

[KaibutsuX]

Is there any support for splitting an srt into > 2 output files?

Say I want to subedit -x 00:10:00,000 -x 00:20:00,000 and expect 3 resulting srt files.

Or do I need to do this is multiple steps?

If I need to do it in multiple steps is there any support for specifying the output filename or do I just need to rely on the naming convention of {original}_idx.srt and delete intermediate steps before splitting again in a multi-step process?