Expression Selector using Range Selector Start and End values?

Hi!
Is is possible to link somehow the Expression Selector to the Start and End values in Range Selector?

Basically I want to play with these to achieve an outwards type animation (and not from left to right or random)

In my case, playing with the scale and this expression:


delay = .1;
myTime = time - delay*(textIndex-1);
n = 0;
if (numKeys > 0){
n = nearestKey(myTime).index;
if (key(n).time > myTime) n--;
}
if (n > 0){
t = myTime - key(n).time;
amp = velocityAtTime(key(n).time - .001);
freq = 4;
decay = 2;
w = freq*Math.PI*2;
valueAtTime(myTime) + amp* Math.sin(t*w)/Math.exp(decay*t)/w
}else{
valueAtTime(myTime)
}


So if you type " video drome", it would start with "o", "d", "e", "r","d", o" and so on... as if you play around with the Start and End values in the Range Selector

thanks in advance!