Custom Game templates saved on PTR

Hello, I wanted to extract from the PTR to the Live version my saved template of the Custom Game with workshop mechanics (recently updated my Hostage Extraction gamemode to Crown Update), but since the PTR is downed for now, is there a way how I can get the Custom Game Templates from “outside the game”?

Like: My Documents/Overwatch/CustomGameTemplates ?

Thus I won’t lose them when next PTR patch comes out?

There is not. You will have to wait till the PTR goes live again of new patch to find those custom games. (Assuming they don’t snapshot the PTR.)