I recently used the Takayama Hokuriku Area Tourist Pass to travel from Osaka Kansai airport, to Kanazawa, Takayama, Shirakawa-go and back to Osaka. This pass is for 5 days travel starting mid night to midnight. On my day 6 and 7 day at Osaka I used the I coca card.
I bought the pass on line from japan-rail-pass.com about 2 months before travelling. A token was send to me by courier within a week. I exchange it at the JR office at Kansai airport for a pass. It's convenient and cost saving for my trip around the area. Just show it to the station officer at the exit. At the same time check with them which platform and time for the train. We may reserve seat on the train, but its not necessary unless during peak season.
I travelled beyond the area to Kurobe Gorge. At exit point, the adjusted fare will be calculated and paid to the station officer at the exit gate. Just show them your pass and tell them where you came from.
There is a need to reserve your Nohi bus seat. Reservation can be done a day before at station or by phone.
At Osaka we can exit at any JR station.