OK. In case it helps, the way I'll do that is, for those particular pieces, the image call will be last for showcard, and the image pair will be last for fen2.
If all else fails, maybe you can see if the image-compounding for fen2 can be translated in one way or another to showcard. (That'd be easiest at my end, but it wouldn't surprise me if it was crazy complicated if not impossible at your end.)
OK. In case it helps, the way I'll do that is, for those particular pieces, the image call will be last for showcard, and the image pair will be last for fen2.
If all else fails, maybe you can see if the image-compounding for fen2 can be translated in one way or another to showcard. (That'd be easiest at my end, but it wouldn't surprise me if it was crazy complicated if not impossible at your end.)