Trying to save video resolutions to a cfg , not working

hi members , i just tried RetroArch-Wii-v1.0.0.2 and cant get the Per Core Settings to work…

what im trying exactly is to set the video resolution and save it to a .cfg file

is this feature not implemented yet ? or am i doing something wrong ?

chat soon

Please refer to this post there is a discussion already on this topic viewtopic.php?f=31&t=1559&start=25#p12360