The split tool isn't a separate plug-in, but lives inside the Inserts window. You can't activate a splitter until you have at least one plug-in inserted in the channel strip.Thanks. I couldn't figure out how to separate the L&R unequal recording. IS "Splitter" A Studio One tool? I'm not seeing it under Presonus.
Click the routing symbol which shows the routing within a channel strip. It is normally a straight line with whatever plug-ins you choose in the order they appear for processing. Grabbing the Splitter (the little hand) and drag it into the signal chain.
I did a video on using the splitter to biamp a guitar solo. While it isn't exactly on point for what you're doing, it explains how it works well enough that you can figure how it applies here.
https://youtu.be/JMMFC8H_Q00