Unfortunately, the GLV's button is electronic...meaning it has wires. The REO Mini has no wires at all. Without changing the design layout of the power delivery of the mini, the two can't be married. What is it that you're not liking...the lack of "clicking" or just that its too small? Are you mashing the button? There may be an easy solution.
If the button is too small and you're finding a comfort issue, check this out
http://www.e-cigarette-forum.com/fo...sic-troubleshooting-ideas-18.html#post3692814
If you find yourself mashing the button....just don't mash it. You don't need to. If you put your mini up by your ear, then gently press the button, you will see that it doesn't require a lot of pressure to fire properly.
There are always new ideas on the drawing board for REOs so a change like this may be implemented down the road.