Display refresh rates in Photon

Anybody knows when will ability to change screen refresh rate be realized?
(for vga, vesa or s3 drivers).
I tried QNX RTP on 4 comps with different cards (only S3Trio was recognized;
other use vesa or vga drivers) and on all
get only 60Hertz - too low for comfortable work.
Maybe some hints to set it manually in some config files?