I'm pretty sure that there is no way for a ratchet shifter to have that ability. The Art Carr/Winters 4 speed shifter has what they call a "rock gate" that will allow you to do just that. It is a gated type shifter though, not a ratchet one. I believe the B&M pro stick also has a similar capability, but it is also not a ratchet shifter. Ratchet shifters by definition can't skip any gears, you have to "ratchet" through them.
99 Wrangler Project Detroit Mongrel 5.3/4l60e/Atlas HPD60/14B coilovers etc...