Koyasan with JR Hiroshima Kansai Pass?

Hello!
I have a JR Hiroshima Kansai Pass.
Could you tell me if I can use it to go to Koyasan? Specially now that there is no cable car, and I think that people has to go to Hashimoto (I�Lm not sure if I�Lm right).
Could you please help me?

If that pass is not useful, which one would be?
I will go from Kyoto station to Koyasan on February 8th
On February 9th, I will go from Koyasan to Osaka Namba.

Thanks in advance for your help!
Barbara

Could you tell me if I can use it to go to Koyasan?

No, not all the way.

If you travel via Wakayama City (which is a detour), you can get as far as Hashimoto Station. But from Hashimoto, you have to take Nankai Railway which is not covered (830 yen one way).

If that pass is not useful, which one would be?

The Koyasan World Heritage Pass and Kansai Thru Pass are good passes for visiting Koyasan:
https://www.japan-guide.com/e/e2358_012.html
https://www.japan-guide.com/e/e2357_005.html