How to add an expression to the start, and end properties of a text animator range selector?

Question

So I have a code trying to add an expression to these properties, but the error comes back saying they are hidden?

Any help is appreciated, here's my code currently:

var animator = app.project.activeItem.selectedLayers[0].Text.Animators.addProperty("ADBE Text Animator");
var selector = animator.property("ADBE Text Selectors").addProperty("ADBE Text Selector");
selector.advanced.units.setValue(2);
var startExpression=("0");
var endExpression=("10");
selector.start.expression=startExpression
selector.end.expression=endExpression;

Dan Ebberts · Accepted Answer

When you set the units to Index, it changes the names of the Start and End parameters. This should work:

var animator = app.project.activeItem.selectedLayers[0].Text.Animators.addProperty("ADBE Text Animator");

var selector = animator.property("ADBE Text Selectors").addProperty("ADBE Text Selector");

selector.advanced.units.setValue(2);

var startExpression=("0");

var endExpression=("10");

selector.property("ADBE Text Index Start").expression = startExpression;

selector.property("ADBE Text Index End").expression = endExpression;

Dan

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