How to flipy during gameplay

[ckong]

Since a week I'm a very satisfied user of groovymame, it rocks.

however, some older games are upside down, or mirrorred, or upside down an mirrorred, like spacefury. I know how to change the rotation of upside down games on the fly, using the video option under TAB, but how to change it on the fly for mirrored (and possibly upside down) games? I know hoe to get spacefury playing correctly from the command promp (use -flipy), but I start the game from a frontend, so I have two options:
1. change it on the fly during gameplay. But in the video options under TAB I can only rotate the image. That doesn't help me with spacefury.
2. Edit the game config. But which text to input there to flipy the game?

Option 1 would be the nicest, but I believe that this is not possible, is it?

Edit: let it be, I just read in another thread that it is a known GM ´issue´that happens with some vectorgames.

[Calamity]

Yes, this will be fixed in the next release, hopefully. By now, you can use the flip options in specific inis.

[ckong]

okidoki.

[Calamity]

Hi ckong,

This should be fixed now (0.148u2_014a).

[ckong]

yep, just read about it. thanks for the great support.