Multiple trs outputs into one Roland tr 707 example

I was wondering if there was a way to split my Roland TR 707 so that it has a kick jack, a snare jack and three tom inputs in one output etc (routing is just an example) .
I saw that there are cables that take two signals and produce only one output, but I was wondering if there were others that have multiple inputs and only one output.
This is because I don’t want to take up 10 slots on my sound card just for this, but I still want to record in multitrack.
Any suggestions?