Change percentage watched before a show is marked watched?

[marsousa75 0]

Hello. I have been close to the end of a show or movie and am interrupted and click back button to stop playback. Then when I come back the show or movie has been marked as watched and I have to start it over and fast forward back to where I was. I know I can press pause instead but out of habit I usually press the back key on the remote..... Does there exist the option to set the threshold to a higher percentage? Server (beta 4 8 0 21) and client are both Nvidia Shield. Thank you.

[GrimReaper 4739]

It is per-library setting (edit any library, scroll all the way to the bottom). 

[marsousa75 0]

Not sure how I missed that! Thanks.