Hi ,
I have absolutely no idea, I watched a video with a beginner slide guitar 2 weeks ago (but it is still under copy write), but Justin tells me that it is a matter of trying… each different hand/finger would could use another one…I’ll look for an older video of Justin and see if I can find it…
It’s from 2021 and I hope this is of some use to you…in any case, have fun with it
Greetings