and typically file names to adjust your VR experience have VR_ prepended to the name.
So ...\Hitech Creations\Aces High III\settings\VR_filters.cfg <--That controls the text message window not the radio window.
the inside of mine looks like this:
0x00010000,VERSION
28,FONT_SIZE
1,FILTER_CNT
1181,2117,1868,2394,SMALLRECT
1140,1217,1829,2403,LARGERECT
1,TAB_CNT
All
0x000006ff,FLAGS