I want to open all these file types with a given video player.
But the Change... button is greyed out.
What should I do..?
Open With is a Windows-wide setting, but File Type Groups are specific to Opus so it doesn't make sense with them.
If you only care about what happens inside of Opus, double-click the File Type Group and change the left double-click event to use the program you want to open the files.
If you want the change to also affect other programs, not just Opus, then you'll need to make it for each of the types individually.
Excellent clarification slouw ;D
Can Opus be "smart" and assumed that if an Opus parameter is not given, "{f}" is assumed?
I dont speak with authority but it would seem not as wehn i tried it it did not work....
Then there'd be no way to run a program without giving it the selected filename.
Hahaha duh of course. 